What is the answer to this question?

What Is The Answer To This Question?

Answers

Answer 1

The ribosomes are composed of RNA and protein and are the site of protein synthesis.

What are ribosomes?

The ribosomes are composed of RNA and protein and are the site of protein synthesis.

Ribosomes are found in all living cells and are responsible for assembling amino acids into polypeptide chains, which then fold into functional proteins.

Ribosomes can be found free-floating in the cytoplasm or attached to the endoplasmic reticulum in eukaryotic cells.

Prokaryotic cells have smaller ribosomes compared to eukaryotic cells, which makes them a target for certain antibiotics that can selectively inhibit bacterial protein synthesis without affecting human cells.

More on ribosomes can be found here: https://brainly.com/question/241631

#SPJ1


Related Questions

FILL IN THE BLANK Please match the stages of the population growth curve with the statements that most accurately describe them. 1. lag phase ____ 2. exponential growth phase ____ 3. stationary growth phase ____ 4. death phase ____ v

Answers

The following are the statements that most accurately describe the stages of the population growth curve. The correct order is 1 - Lag phase, 2 - Exponential growth phase, 3 - Stationary growth phase, and 4 - Death phase

Lag phase: The initial phase of growth in which the population is acclimating to its new environment and growth is slow.

Exponential growth phase: This phase is characterized by the rapid, exponential growth of the population. The growth rate is at its maximum, and the population size is increasing at its greatest rate.

Stationary growth phase: In this phase, the population growth rate slows down, and the size of the population stabilizes. This phase occurs when the population reaches the carrying capacity of the environment.

Death phase: This phase occurs when the population size starts to decline. It can be due to limited resources, increased competition for resources, or environmental factors such as disease or predation.

To learn more about the population growth curve

https://brainly.com/question/3680784

#SPJ4

[!] which type of neuron would exhibit the pattern of action potentials as seen above in response to a stimulus?

Answers

When exposed to a stimuli, tonic type neurons would respond with the pattern of action potentials seen above. As a neuron transfers information away from the cell body and down an axon, it experiences an action potential.

The action potential is sometimes referred to as a "spike" or a "impulse" by neuroscientists. A neuron's response to threshold or suprathreshold stimuli results in an action potential. Depolarization, overshoot, and repolarization are the three steps that make up this process.

A neuron's action potential is a fast, transient shift in membrane potential (electrical charge) brought on by the quick inflow of sodium and outflow of potassium. Neurons have the capacity to transmit impulses, react to stimuli (such as touch, sound, light, and so on), and interact with one another.

Learn more about neuron Visit: brainly.com/question/11538106

#SPJ4

Darwin is famous for his observations of the Galapagos Finches. Explain why these birds all had different lengths and shapes of beaks.

Answers

Answer:

The Galapagos Finches are a group of small birds native to the Galapagos Islands, which are located off the coast of Ecuador in South America. These birds are perhaps most famous for their unique beak shapes and sizes, which vary significantly from species to species. The reason for these differences in beak shape and size has to do with the ecological niches in which these birds live.

Each species of Galapagos Finch is adapted to a particular ecological niche, which is a specific role or position that an organism occupies within an ecosystem. For example, some species of finch feed primarily on insects, while others feed on seeds. Still others have evolved to feed on the nectar of flowers. These different food sources require different beak shapes and sizes to efficiently extract the food.

Darwin observed that the beak shapes and sizes of the finches varied from island to island, and that this variation was closely related to the available food sources on each island. For example, the finches on islands with primarily seed-based diets had larger, stronger beaks that were better able to crack open tough seed casings. On islands where insects were the primary food source, the finches had thinner, more pointed beaks that were better able to probe into crevices to extract insects.

The concept of ecological niches and adaptation is not unique to the Galapagos Finches. In fact, it is a fundamental principle in evolutionary biology. Organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to future generations. Over time, this can result in the evolution of new species.

The Galapagos Finches are a perfect example of this process in action. By adapting to different ecological niches, these birds have evolved a remarkable diversity of beak shapes and sizes. This diversity has helped them to thrive in the unique environment of the Galapagos Islands, and it serves as a powerful illustration of the adaptive power of natural selection.

[tex]\large\underline{\red{ \textsf{ Darwin's observation on Galapagos Islands :-}}}[/tex]

Darwin during his voyage in ship HMS Beagle went to Galapagos islands . There he observed some birds which were similar except the shape and size of the beaks , later those birds were called Darwin's finches.

He observed that the birds had different feeding habits, some of them were insectivorus , and some were frugivorous , he conjectured that all the birds had evolved from the original seed eating finches .

Due to adaptive radiation ( Darwin's finches are one of best examples ) there beaks got modified for different feeding habits , so they had different lengths and shapes of the beaks .

select the molecules that many prokaryotes are able to use as final electron acceptors during anaerobic respiration.

Answers

Many prokaryotes are able to use molecules such as b. Nitrate c. carbon dioxide and d. Sulfur. These three are the correct options.

What are prokaryotes?

Prokaryotes are unicellular beings that are deficit of a nucleus and other membrane-bound organelles. They are classified into two domains: Bacteria and Archaea. Prokaryotes are typically smaller and simpler in structure than eukaryotic cells, and they are found in a wide range of environments, including soil, water, and inside other organisms. Some prokaryotes are capable of photosynthesis, while others obtain energy by breaking down organic matter or through chemosynthesis. Prokaryotes play important roles in many ecological processes and are used in various industrial applications, such as bioremediation and fermentation.

To know more about prokaryotes, visit:

https://brainly.com/question/29054000

#SPJ1

The full question is:

Select the molecules that many prokaryotes are able to use as final electron acceptors during anaerobic respiration.

a. Alcohol

b. Nitrate

c. carbon dioxide

d. Sulfur

e. Acetic acid

In which of the following animals are the blood and the interstitial fluid considered to be the same body fluid?
In which of the following animals are the blood and the interstitial fluid considered to be the same body fluid?
A grasshoppers
B fishes
C sparrows
D dogs
E jellyfish and cnidarians

Answers

Answer:

grasshoppers

Explanation:

The open circulatory system is a type of circulatory system in which the cells bath in the blood directly. It is the characteristic feature of arthropods and mollusks. Grasshoppers are arthropods and have an open circulatory system. In the open circulatory system, the heart pumps the blood into the vessels with open ends. Therefore, blood and interstitial fluid are not distinct and are collectively called hemolymph. The hemolymph comes out of the blood vessels and fills the large spaces called sinuses. The cells of their body bath in the hemolymph. The heart in arthropods has openings to allow the entry of the hemolymph into it.

In fruit flies, brown bodies are dominant to black bodies. Cross two heterozygous fruit flies. Determine
the phenotypic and genotypic ratios. Then determine how many fruit flies, if 200 are born, will have
black bodies.

Answers

Answer:

Explanation:

In this case, we can use Punnett square to determine the genotypic and phenotypic ratios of the offspring:

             B               b

B BB (brown) Bb (brown)

b Bb (brown) bb (black)

So, when we cross two heterozygous fruit flies (Bb x Bb), we get the following genotypic ratios:

25% BB (brown)

50% Bb (brown)

25% bb (black)

And the following phenotypic ratios:

75% brown bodies

25% black bodies

Therefore, if 200 fruit flies are born, we can estimate that 25% of them will have black bodies, which is:

0.25 x 200 = 50 fruit flies

which of the following is a 'zeitgeber', or an important external stimulus affecting biological clocks?

Answers

The information about light that the SCN receives from the retina via the RHT serves as the most significant signal (or "zeitgeber" in scientific parlance) in synchronising the biological clock.

The zeitgebers include things like light, temperature, eating and drinking habits, etc. These environmental cues support the biological clock's ability to maintain rhythmic cycle consistency. The most significant Zeitgeber is light. Zeitgeber time (ZT) is a standardised 24-hour notation for the phase in an entrained circadian cycle, with ZT 0 denoting the start of daytime or the light phase and ZT 12 denoting the start of nighttime or the dark phase. See circadian time for a comparison.

To know more about biological clock, click here:

https://brainly.com/question/3901761

#SPJ4

explain the socio-economic challenges that exist in rural areas​

Answers

Answer:

Rural communities face challenges related to demographic changes, workforce development, capital access, infrastructure, health, land.

Explanation:

Some of the most significant examples of socio-economic issues would include things like: Income levels within a community. The kind of educational opportunities that exist. The employment situation of a community. Safety within a community.

Some socioeconomic challenges that exist in rural areas are things like education. Quality education may not be provided due to limited resources

Scientists discovered that the combination of coffee and Ibuprofen helps pacify headaches fast.
Coffee plus Ibuprofen turned out to help pacify headaches fast.
Coffee and Ibuprofen combined together is effective for pacifying headache.
Scientists learned that combining coffee and Ibuprofen relieves headaches quicker.

Answers

Research have demonstrated the benefit of mixing coffee with ibuprofen to treat acute pain.

Because sensitive methods for measuring this sort of headache pain are lacking, research on this combination for usage in tension-type headaches has lagged.

In comparison to ibuprofen alone, caffeine alone, and placebo, ibuprofen and caffeine administration produced noticeably more analgesic action. In comparison to taking either ibuprofen alone, caffeine alone, or a placebo, taking ibuprofen and caffeine together resulted in significantly shorter times to a meaningful improvement in headache relief, significantly larger total analgesia, and significantly greater peak relief.

Learn more about acute pain here:

https://brainly.com/question/30397683

#SPJ1

ossification is a dynamic process involving several different cell types with roles related to bone growth.

Answers

Ossification is a complex process that involves a variety of different cell types. The process is important for bone growth and development and is essential for maintaining bone health throughout life.

Ossification is a dynamic process involving several different cell types with roles related to bone growth. It is the process by which bone forms from preexisting connective tissue through a process of mineralization. The process occurs in two main stages: endochondral ossification and intramembranous ossification. Endochondral ossification occurs in long bones that have a cartilage template, while intramembranous ossification occurs in flat bones. The process of ossification involves a variety of cell types, including osteoblasts, osteoclasts, and chondrocytes. Osteoblasts are bone-forming cells that secrete collagen and other proteins, which form the matrix of bone. They also secrete alkaline phosphatase, which is important for the mineralization of bone. Osteoclasts are bone-resorbing cells that break down bone tissue. They are important in maintaining the balance between bone formation and resorption. Chondrocytes are cartilage-forming cells that are important in endochondral ossification. They secrete a matrix of collagen and proteoglycans, which is then mineralized to form bone.

To learn more about Ossification :

https://brainly.com/question/12885340

#SPJ11

classify the following characteristics based on which domain is described. labels may be used more than once.

Answers

The following characteristics can be classified according to the appropriate domain: Cognitive Domain: knowledge, comprehension, problem-solving, critical thinking, and creativity. Affective Domain: attitudes, values, beliefs, emotions, self-esteem. Psychomotor Domain: physical coordination, manual dexterity, physical fitness, motor skills



The Cognitive Domain deals with thinking and problem-solving, such as knowledge, comprehension, problem-solving, critical thinking, and creativity. It involves acquiring, processing, and understanding information. The Affective Domain includes attitudes, values, beliefs, emotions, and self-esteem. It is concerned with changing feelings and behaviors and includes an awareness of one's feelings and the ability to express them. The Psychomotor Domain covers physical coordination, manual dexterity, physical fitness, and motor skills. It is the ability to use one's body to perform various tasks. It is often used in physical education classes and in activities such as sports and dance.

To learn more about Cognitive Domain :

https://brainly.com/question/28143835

#SPJ11

select observations and inferences that charles darwin made in support of natural selection. multiple select question.

Answers

Answer:

There is competition among individuals for scarce resources, more people are born than can survive to reproduce, and natural selection can alter the characteristics of a population. Individuals are diverse and some variations are inherited. Some individuals survive due to inherited characteristics, making them more likely to reproduce.

Explanation:

select molecules that have stored potential energy and that can be used in aerobic respiration to generate atp.

Answers

Carbohydrates, lipids, and protein have potential energy, and can be used in aerobic respiration to generate .

Carbohydrate- A carbohydrate is a naturally occurring substance or a derivative of one, made composed of molecules of carbon, hydrogen, and oxygen. The most prevalent organic compound is a carbohydrate, and all life depends on them.

Lipids- Fatty, waxy, or oily molecules are referred to as lipids. They are soluble in organic solvents but insoluble in polar solvents like water.

Amino acids: Amino acids can be used to generate ATP in aerobic respiration as well. They are broken down into intermediates that can enter the Krebs cycle to generate ATP.

Protein- Large, intricate molecules known as proteins serve a variety of vital functions in the body. They are crucial for the construction, operation, and control of the body's tissues and organs and carry out the majority of their job inside cells

For such more question on Carbohydrates:

https://brainly.com/question/336775

#SPJ11

The following question may be like this:

Select all the molecules that have stored potential energy and that can be used in aerobic respiration to generate atp.

a) lipids carbohydrates

b) water proteins

c) carbon dioxide

please help me i need to know how many amino acids are different and what kind of mutation each mutated dna sequence is

Answers

Base substitutions, deletions, and insertions are the three forms of DNA mutations.

Define mutation.

A mutation is a change in the sequence of genes. Mutations can be as simple as replacing a single DNA building block, or nucleotide base, with another nucleotide base. Larger mutations, on the other hand, can influence multiple genes on a chromosome. A point mutation occurs when one base in the DNA is changed to another. A missense mutation arises when that point mutation results in the placement of a different amino acid from that codon. Due to the fact that numerous codons code for the same amino acid, not all point mutations result in a missense mutation.

Learn more about mutations

https://brainly.com/question/17130462

#SPJ1

Photosystem II A) has P700 at its reaction center. B) is reduced by NADPH. C) passes electrons to photosystem I. D) does not have a reaction center. E) releases CO2 as a by-product.

Answers

Photosystem II has P700 at its reaction center. This is a photosystem composed of chlorophyll and other accessory pigments that absorb light energy. P700 is the type of chlorophyll that acts as the reaction center for this photosystem.

Photosystem II is reduced by NADPH. This is a coenzyme that carries electrons and is responsible for providing the electrons necessary for Photosystem II's function. Photosystem II passes electrons to Photosystem I. Photosystem I then passes electrons to an enzyme known as Ferredoxin, which in turn passes electrons to NADP+. Photosystem II does not have a reaction center. This is because the reaction center is composed of P700 chlorophyll, which is only found in Photosystem II. Photosystem II releases CO2 as a by-product. This happens when energy from light is absorbed by the reaction center and the electrons from Photosystem II are passed to Photosystem I. The CO2 is then released as a result of the electron transfer.

To learn more about Chlorophyll :

https://brainly.com/question/1339673

#SPJ11

suppose you get a splinter in your epidermis which kind of epidermal cell would trigger an immune reaction g

Answers

A splinter that is lodged in the epidermis can trigger an immune reaction. The epidermis is made up of keratinocytes, which are specialized cells that produce the protein keratin.

When the splinter penetrates the epidermis, it activates the keratinocytes to release cytokines, which in turn signal the immune system to send out macrophages and other cells to fight the foreign invader. Macrophages engulf and destroy foreign material and clean up any debris that is left behind. They also signal the immune system to release additional antibodies and other immune cells to help with the removal of the splinter. In summary, the immune reaction to a splinter in the epidermis is triggered by keratinocytes that release cytokines, which signal macrophages and other immune cells to the site. The macrophages engulf and destroy the foreign material while the additional antibodies and other immune cells help to remove the splinter from the epidermis.

To learn more about Epidermis :

https://brainly.com/question/28295578

#SPJ11

the last stage of one complete turn of the calvin cycle involves regeneration of . group of answer choices sugar co2 g3p rubp

Answers

Regeneration of rubp occurs in the last phase of a single calvin cycle rotation. RuBP is renewed at the last step of the Calvin Cycle, allowing the system to get ready to fix additional CO2. Option 4 is Correct.

The light-independent processes are started and carbon dioxide is fixed in the first phase of the Calvin cycle. The C3 cycle's second step involves the reduction of 3PGA to G3P by ATP and NADPH. After that, ATP and NADPH are changed into ATP and NADP+. RuBP is renewed in the last phase.

Three phases make up the Calvin cycle. Stage 1 of the process involves the enzyme RuBisCO adding carbon dioxide to an organic molecule. The organic molecule is decreased in stage two. RuBP, the cycle's initiator molecule, appears in stage 3. Hence, Option 4 is Correct.

Learn more about calvin cycle Visit: brainly.com/question/920840

#SPJ4

Correct Question:

The last stage of one complete turn of the calvin cycle involves regeneration of . group of answer choices

1. sugar

2. co2

3. g3p

4. rubp

Classify each muscle based on its primary action at the shoulder.
Coracobrachialis
Teres minor
Subscapularis
Supraspinatus
Abductors
Flexors
Infraspinatus
Lateral portion of
deltoid
Latissimus dorsi
Anterior portion
of deltoid
Posterior portion
of deltoid
Pectoralis major
Rotators
Teres

Answers

The answer for the following question is given as follows :-

Coracobrachialis: Flexor

Teres minor: Rotator

Subscapularis: Rotator

Supraspinatus: Abductor

Abductors: Abductor

Flexors: Flexor

Infraspinatus: Rotator

Lateral portion of deltoid: Abductor

Latissimus dorsi: Adductor

Anterior portion of deltoid: Abductor

Posterior portion of deltoid: Abductor

Pectoralis major: Adductor

Teres: Rotator

What are primary action muscles?

Primary action muscles are muscles that are primarily responsible for producing a specific movement or action at a joint. For example, the biceps brachii muscle is a primary flexor of the elbow joint, while the triceps brachii muscle is a primary extensor of the elbow joint. The primary action of a muscle is determined by its anatomical position and its line of pull relative to the joint it crosses. Understanding the primary actions of muscles is important for developing effective exercise programs and for diagnosing and treating injuries or dysfunctions of the musculoskeletal system.

To know more about bones visit :-

https://brainly.com/question/412179

#SPJ1

Which of the following abbreviations does NOT refer to a type of diabetes?
NIDDM
GDM
DI
CGM
DM

Answers

The abbreviation "DI" does not refer to a type of diabetes.

Diabetes Insipidus, also known as DI, is a relatively uncommon illness in which the body has trouble controlling its water balance.

The remaining acronyms all denote different forms or methods of treating diabetes:

Insulin resistance and a relative insulin deficit are features of Type 2 diabetes, also known as NIDDM (Non-Insulin Dependent Diabetes Mellitus).

Pregnancy-related diabetes called gestational diabetes mellitus (GDM).

A gadget called a CGM (Continuous Glucose Monitor) is used by diabetics to continuously monitor their blood glucose levels.

A class of metabolic illnesses known as DM (Diabetes Mellitus) are characterized by elevated blood sugar levels.

To know more about diabetes click here

brainly.com/question/26666469

#SPJ4

The T cell receptor (TCR) on T helper cells most likely recognizes:
A. short peptides inside a non-enzymatic protein.
B. long peptides inside an enzymatic protein.
C. short polysaccharides inside an enzymatic protein.
D. long-chain fatty acids inside a non-enzymatic protein. ​

Answers

Option A. The T cell receptor (TCR) on T helper cells most likely recognizes:  short peptides inside a non-enzymatic protein.

What are  T cell receptor (TCR)?

The T cell receptor (TCR) on T helper cells most likely recognizes short peptides inside a non-enzymatic protein.

T helper cells play a critical role in the adaptive immune response, specifically by recognizing and responding to foreign antigens displayed on the surface of antigen-presenting cells (APCs). The TCR on T helper cells binds to antigenic peptides that are displayed on the major histocompatibility complex (MHC) molecules on the surface of APCs.

In general, the antigenic peptides recognized by TCRs are short peptides (usually 8-20 amino acids in length) that are derived from proteins that have been degraded within the APC. These peptides can come from non-enzymatic proteins or enzymatic proteins, but they are typically not long enough to constitute entire protein sequences.

Read more on T cell receptor (TCR) here:https://brainly.com/question/10476887

#SPJ1

are the following statements descriptions of the innate immune system, adaptive immune system, or both?

Answers

The innate immune system, which is present from birth, is the first line of protection against invading pathogens.

a. The innate immune system reacts to an infection within minutes to hours of exposure, providing quick but non-specific defense against a broad range of pathogens.

b. Outline the innate and adaptive defense systems. Both innate and adaptive immune cells can identify and respond to pathogens, but they do so via different mechanisms.

c. Outline the innate and adaptive defense systems. To mount a reaction against invading pathogens, both innate and adaptive immune cells can be recruited to the site of infection.

d. Explain the natural immune system. The innate immune system responds to pathogens in a non-specific manner, meaning that it does not differentiate between different kinds of pathogens and reacts in the same way to any invading organism.

e. The adaptive immune system is described. The adaptive immune system is capable of detecting and responding to a specific pathogen.

Learn more about Immune system

https://brainly.com/question/19843453

#SPJ4

Complete question

Are the following statements descriptions of the innate immune system, adaptive immune system, or both?

a. responds to an infection within minutes to hours.

b. cells can detect pathogens.

c. can be recruited to the site of infection.

d. response is non-specific.

e. response to specific pathogen.

A cell has formed a food vacuole as it ingested a food particle. Which of the following events is associated with the breakdown of that food particle?
Digestion of the food particle occurs in a vesicle enclosed by a membrane that separates the digestion from the cytoplasm.

Answers

Digestion of the food particle occurs in a vesicle enclosed by a membrane that separates the digestion from the cytoplasm. The correct answer is (d) .

When a cell engulfs a food particle, it forms a food vacuole, also known as a phagosome. The food particle is then digested by enzymes within a vesicle called a lysosome, which fuses with the food vacuole to form a digestive vacuole. The lysosomal enzymes break down the food particle into smaller molecules that can be used by the cell for energy and other metabolic processes.

It's important to note that the digestion of the food particle occurs within a vesicle enclosed by a membrane, which separates the process of digestion from the cytoplasm of the cell. This prevents the potentially harmful digestive enzymes from damaging the cell's own organelles and structures.

The cytoplasm of the cell contains a variety of organelles, including the mitochondria, which are responsible for producing ATP, the energy currency of the cell. The endoplasmic reticulum is involved in protein synthesis and lipid metabolism, but it is not directly involved in the digestion of food particles.

When a cell engulfs a food particle, it forms a food vacuole, also known as a phagosome. The food particle is then digested by enzymes within a vesicle called a lysosome, which fuses with the food vacuole to form a digestive vacuole. The lysosomal enzymes break down the food particle into smaller molecules that can be used by the cell for energy and other metabolic processes.

It's important to note that the digestion of the food particle occurs within a vesicle enclosed by a membrane, which separates the process of digestion from the cytoplasm of the cell. This prevents the potentially harmful digestive enzymes from damaging the cell's own organelles and structures.

The cytoplasm of the cell contains a variety of organelles, including the mitochondria, which are responsible for producing ATP, the energy currency of the cell. The endoplasmic reticulum is involved in protein synthesis and lipid metabolism, but it is not directly involved in the digestion of food particles.

.

Learn more about Digestion

https://brainly.com/question/29028558

#SPJ4

Full Question ;

A cell has formed a food vacuole as it ingested a food particle. Which of the following events is associated with the breakdown of that food particle? (a) Digestion of the food particle occurs in the cytoplasm of the cell. (b) Digestion of the food particle occurs in the mitochondria. (c) Digestion of the food particle occurs in the endoplasmic reticulum. (d) Digestion of the food particle occurs in a vesicle enclosed by a membrane that separates the digestion from the cytoplasm."

All organisms need to exchange substances with the environment in order to survive. Outline how multicellular organisms and single-celled organisms exchange substances, and explain why they exchange substances differently. (6 marks)

Answers

Answer:

All living organisms need to exchange substances with their environment to survive. Single-celled organisms exchange substances through their cell membrane via diffusion or endocytosis/exocytosis. Multicellular organisms have specialized organs and tissues to facilitate exchange, such as the lungs for gas exchange or the small intestine for nutrient absorption. The difference in exchange methods is due to their size and complexity. Single-celled organisms are small and have a large surface area-to-volume ratio, while multicellular organisms are larger and have a smaller surface area-to-volume ratio, making it more challenging to exchange substances efficiently through their cell membrane.

Explanation:

All living organisms need to exchange substances with their environment to obtain nutrients, remove waste products, and regulate their internal conditions. The way in which organisms exchange substances depends on their size, complexity, and environment.

Single-celled organisms, such as bacteria and protists, exchange substances with their environment through their cell membrane. The cell membrane is selectively permeable, meaning that it only allows certain substances to pass through. Small molecules, such as oxygen, carbon dioxide, and water, can diffuse across the cell membrane to enter or leave the cell. Single-celled organisms can also engulf or excrete larger particles through processes such as endocytosis and exocytosis.

Multicellular organisms, on the other hand, have more complex systems for exchanging substances with their environment. They have specialized organs and tissues that are responsible for different functions, such as absorption, transport, and excretion. For example, the lungs in mammals are responsible for gas exchange, the small intestine absorbs nutrients from food, and the kidneys remove waste products from the blood. Multicellular organisms also have circulatory systems that transport substances, such as oxygen and nutrients, throughout the body.

The main reason why multicellular organisms and single-celled organisms exchange substances differently are due to their size and complexity. Single-celled organisms are small and have a large surface area-to-volume ratio, which allows them to exchange substances efficiently through their cell membrane. In contrast, multicellular organisms are larger and have a smaller surface area-to-volume ratio, which makes it more difficult to exchange substances efficiently through their cell membrane. Therefore, multicellular organisms have developed specialized organs and tissues to facilitate the exchange of substances with their environment. Additionally, multicellular organisms have more complex physiological processes and require more nutrients and oxygen to sustain their metabolic activity compared to single-celled organisms.

name 5 ways of controlling the spread of Hiv Aids

Answers

Answer:

Hiv stands for the acronym HUMAN IMMUNO DEFICIENCY VIRUS while aids stand for ACQUIRED IMMUNO DEFICIENCY SYNDROME.

Explanation:

How to control HIV aids

1: Use sterilized needles

2: Don’t share needles

3: Consider intimate activities that don’t involve the exchange of bodily fluids

4: You can use strategies such as abstinence (not having sex), never sharing needles, and using condoms the right way every time you have sex. You may also be able to take advantage of HIV prevention medicines such as pre-exposure prophylaxis (PrEP) and post-exposure prophylaxis (PEP).

Evolution is simply _ ______ __ ___ _______ ______ __ _ __________ ____ ____.

Answers

Evolution is simply the differential survival and reproduction of better-adapted organisms in a population.

What is the process of natural selection associated with evolution?

The process of natural selection associated with evolution refers to the differential survival and reproduction of the fittest adaptive phenotypes in a given population, which leads to the change in the morphological and genetic features of organisms in a population and also among species.

Therefore, with this data, we can see that process of natural selection associated with evolution lead to the emergence of new phenotypes in the population.

Learn more about  the process of evolution here:

https://brainly.com/question/21202780

#SPJ1

Evolution is simply the process of change in living organisms over time. It is a fundamental concept in biology that describes how species can undergo genetic and phenotypic changes across generations. Through mechanisms such as natural selection, genetic mutation, genetic recombination, and genetic drift, populations can accumulate and pass on advantageous traits while losing or modifying less beneficial ones.

Evolution is driven by the interaction between organisms and their environment. Individuals with traits that provide a survival advantage or reproductive success are more likely to pass on their genes to future generations. Over time, this can lead to the emergence of new species, the extinction of others, and the diversification of life forms on Earth.

Evolution is supported by a wide range of evidence, including fossil records, comparative anatomy, embryology, molecular biology, and genetic studies. It provides a powerful framework for understanding the complexity and diversity of life on our planet and how species adapt and change in response to their surroundings.

explain the socio-economic challenges that exist in urban areas​

Answers

Answer:

the unemployment rate will increase.

Answer:

dually fishtail good too risks tittiesss

the endomysium is a connective tissue sheath that wraps around which of the following? multiple choice question.

Answers

The endomysium is a connective tissue sheath that wraps around individual muscle fibers. Therefore, the correct answer is: Muscle fibers.

The other options are incorrect because:

Bones are surrounded by periosteum, not endomysium.Tendons are surrounded by epimysium and perimysium, but not endomysium.Organs are not related to the endomysium as they are not composed of muscle fibers.

What is an endomysium?

Endomysium is a thin layer of connective tissue that surrounds individual muscle fibers within a muscle. It is composed of collagen and elastin fibers, and contains capillaries, nerve fibers, and muscle stem cells called satellite cells.

The endomysium provides support and protection to the muscle fibers, and also plays a role in transmitting force between adjacent muscle fibers. It also contains extracellular matrix proteins that are essential for maintaining the structural integrity of the muscle tissue. In summary, the endomysium is a critical component of the muscle tissue, providing support, protection, and facilitating communication between adjacent muscle fibers.

To know more about endomysium, visit:

https://brainly.com/question/3942368

#SPJ1

Complete question is: The endomysium is a connective tissue sheath that wraps around individual muscle fibers.

What type of organisms first move into an area after a primary disturbance?
A. Small animals that need shade to survive B. Plants that cannot live in severe conditions C. Organisms that reproduce quickly
D. Animals that prey on small animals​

Answers

Organisms that arrive first in a region following a disturbance are known as pioneer species.

What is pioneer species?Pioneer species are hardy species that are the first to colonise arid regions or previously biodiverse steady-state ecosystems that have been disturbed, such as by wildfire. Pioneer species are the first creatures to appear in areas of primary succession (usually lichens or mosses). They are the first species to exist. They must be hardy and powerful. The growth of a new community is succession.Fungi and lichen are the most prevalent pioneer species during initial succession on land. They create soil by dissolving rock's minerals, allowing later populations to settle the area. Pioneer species are those that enter a freshly formed environment initially. By their interactions, these species develop a basic beginning biological community.

To learn more about pioneer species, refer to:

https://brainly.com/question/4771894

What is the relationship between tropic level and population size

Answers

Explanation:

A trophic level refers to the position of an organism in a food chain, based on what it eats and what eats it. The first trophic level consists of primary producers, such as plants, that convert energy from the sun into organic matter through photosynthesis. The second trophic level consists of herbivores that feed on primary producers, while the third trophic level consists of carnivores that feed on herbivores, and so on.

The size of a population at a particular trophic level can be influenced by a variety of factors, such as the availability of food, the presence of predators, competition for resources, and environmental conditions. For example, if the population of primary producers in an ecosystem is large and healthy, this can support a larger population of herbivores that feed on them. Similarly, if the population of herbivores is large and healthy, this can support a larger population of carnivores that feed on them.

the relationship between trophic level and population size is complex and can be influenced by a variety of factors. The size of a population at a particular trophic level is dependent on the availability of resources and environmental conditions, as well as the interactions between different species in the ecosystem.

Explanation:

I think you mean - Trophic Level not 'tropic level'

In general, as you move up the trophic levels, there tends to be a decrease in population size. This is because each level of the food chain supports a smaller number of organisms than the level below it, due to the transfer of energy and nutrients from one level to the next.

See in the pyramid below, energy is lost in this transfer between trophic levels (usually around 90%).  

Use this diagram to explain the mechanism of natural selection. Use the terms:

Fitter, inherited, advantage, survive, reproduce

Answers

The mechanism of natural selection works like this:

Within a population of a particular species, there is genetic variation, meaning that individuals within that population differ from one another in terms of their genetic makeup. Some of these variations may be advantageous, such as the ability to blend and be more fitted in with the environment in order to survive, while others may be disadvantageous.

What is natural selection?

Natural selection is a process that explains how certain genetic traits become more or less common within a population over time. It is one of the key mechanisms of evolution.

Individuals with advantageous variations, like camouflage in this case, are better suited to survive in their environment because they are harder for predators to detect. As a result, these individuals are more likely to reproduce and this trait of advantage can be inherited by their offspring

Learn about natural selection here https://brainly.com/question/23929271

#SPJ1

Other Questions
What type of device used microwaves for communication Look at the poster titled "Killing Time is Killing Men."Based on the contents of the poster and its title, what message did this postertry to send workers during World War II? When considering factors that shift demand curves, which of the following will decrease the market demand for a product? Select the two correct answers below. O a drop in the population likely to buy the good in question O a rise in the price of complements O a rise in the population likely to buy the good in question O a drop in the price of complements EcoFabrics has budgeted overhead costs of $945,000. It has allocated overhead on a plantwide basis to its two products (wool and cotton) using direct labor hours which are estimated to be 450,000 for the current year. The company has decided to experiment with activity-based costing and has created two activity cost pools and related activity cost drivers. These two cost pools are cutting (cost driver is machine hours) and design (cost driver is number of setups). Overhead allocated to the cutting cost pool is $360,000 and $585,000 is allocated to the design cost pool. Additional information related to these pools is as follows.WoolCottonTotalMachine hours100,000100,000200,000Number of setups1,0005001,500Calculate the overhead rate using activity based costing. (Round answers to 2 decimal places, e.g. 12.25.)Overhead rates for activity-based costingCutting$per machine hourDesign$per setupLINK TO TEXTLINK TO TEXTDetermine the amount of overhead allocated to the wool product line and the cotton product line using activity-based costing.Wool product lineCotton product lineOverhead Allocated$$LINK TO TEXTLINK TO TEXTCalculate the overhead rate using traditional approach. (Round answer to 2 decimal places, e.g. 12.25.)Overhead rates using the traditional approach$per direct labor hourLINK TO TEXTLINK TO TEXTWhat amount of overhead would be allocated to the wool and cotton product lines using the traditional approach, assuming direct labor hours were incurred evenly between the wool and cotton?Wool product lineCotton product lineOverhead Allocated$$ Tripling the concentration of a reactant increases the rate of a reaction nine times. With this knowledge, answer the following questions: (a) What is the order of the reaction with respect to that reactant?(b) Increasing the concentration of a reactant by a factor of four increases the rate of a reaction four times. What is the order of the reaction with respect to that reactant? Graph the linear equation.42 + 6y = -12Plot two points on the line to graph the line. What are the five mission areas outlined in the National Response? this condition is due to an excessive production of sebum, this condition is called when creating research plans, speakers should consult school or community libraries as well as the internet true or false when a provider has market dominance, and hence can set its own prices (within reason), it is called a price taker. Help, please?1. How did the Punic wars impact the history and development of the Roman world? What were the long-term economic and social impacts of Hannibal's march through Italy? How did the defeat of Carthage impact the later development of the Roman world?2. What issues in the Roman Republic did Gracchi, Marius, Sulla, and Caesar attempt to address? To what extent did they succeed or fail?3. Compare and contrast the first emperors of China and Rome. What were the policies of each emperor and how did each achieve his goals? Which was the most successful? 4. Discuss the process of unification in China under the first emperor. What reforms did he initiate and what was their impact on China? To what extent did these reforms survive his reign and influence other dynasties?5.According to the Marco Polo narrative included in this chapter, what were the special characteristics of Yuan China? Why do you think Europeans found it hard to believe that such wonders existed in China? What do the reactions to Marco Polo and his narrative itself reflect about European knowledge of China? Who ever helps me, Get 100 points Why do you think that the "Phallic Stage" is the most controversial and crucial period of development? which aspect of preparing an accounting worksheet typically requires the greatest involvement by the accountant? According to the ASHRAE standard, which of the following describes how the discharge of a pressure relief value or fusible plug must be installed?15 feet above the ground level not less than 20 feet from any window, ventilation opening or exit in any building. correctly complete these sentences using the words provided magma can partially crystallize at depth and then rise to shallow the smallest subunit of muscle contraction, which is measured from z-line to z-line. which of the options below defines a non-excludable good? question 2 options: consumption by one person does not diminish the quantity of consumption by others. consumption by one person diminishes the quantity of consumption by others. it is difficult (or very costly) to prevent consumption by those who do not pay for the good. it is easy (or relatively costless) to prevent consumption by those who do not pay for the good. Assignment: 04.06 Ancient Greece - Greek Gods and Culture (20 points total) Consider a capital budgeting problem with five projects from which to select. Let us define binary variables xi 1 if project 1 is selected, o otherwise; x2 1 if project 2 is selected, o otherwise and so on Write the appropriate constraint(s) for each condition a, b, c, d, e and the objective function for part f. a. (3 points) Choose no fewer than three projects. b. (4 points) If project 3 is chosen, project 4 must be chosen. c. (4 points) If project l 1s chosen, project 5 must not be chosen. d. (3 points) Projects cost $100, 200, 150, 75, and 300 (in thousands) respectively. The budget is $450,00o. e. (3 points) No more than two of projects 1, 2, and 3 can be chosen. f. (3 points) If the revenues generated by the projects are $400, 100, 265, 80 and 100 (in thousands), write an objective function which maximizes profit.