Answer:
cell wall
mitochondria
chloroplast
The cell membrane is a flexible cellular boundary, respiration takes place in mitochondria, and photosynthesis in the chloroplast.
What are cellular organelles?An organelle is a subcellular structure that, like an organ in the body, has one or more specific tasks to carry out within the cell. The nucleus, which houses genetic material, the mitochondria, which generate chemical energy, and the ribosomes, which put together proteins, are some of the more significant cell organelles.
The nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles are among the organelles found in animal cells. Despite not being protected by a membrane, ribosomes are frequently referred to as organelles in eukaryotic cells.
Thus, the cell is covered by a flexible cell membrane. Mitochondria is a site of cellular respiration, while chloroplast is a site of photosynthesis.
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The statement that there must be a preexisting cell in order for a new cell to form is known as cell
Answer:
cells duplicate so when there is no cell it cant make any
Explanation:
The statement that there must be a preexisting cell in order for a new cell to form is known as cell theory.
What is cell theory?The scientific idea that cells make up living organisms, that they are the fundamental structural and organizational unit of all species.
They all originate from previously existing cells is known as cell theory. It was first proposed in the middle of the nineteenth century.
Because cells are the building blocks of all life, cell theory is essential for our understanding of biology.
We can have single-celled organisms like yeasts and bacteria. All living things grow and develop on the basis of cell division, or the division of a cell from one to two to four.
A vital process for life is mitosis. A cell divides into two identical daughter cells after duplicating all of its components, including its chromosomes.
Thus, the statement "cell arises from pre-existing cells" comes from cell theory.
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If you took a sample of magnetotactic bacteria from the northern hemisphere to the southern hemisphere, would you expect them to survive
Answer:
Yes.
Explanation:
Yes, magnetotactic bacteria can survive in the southern hemisphere if the suitable environment is available for them. These bacteria requires freshwater and marine habitats and prefer environments that contain little to no oxygen means anaerobic conditions. This type of environment is also present in the southern hemisphere so we can conclude that this bacteria can survive in that environment.
In pointers dogs, the Punnett square for tail length is below (gene A). Use the Punnett Square below to determine the possible offspring from a cross between two heterozygotes.
F1
A1 A2
A1 A1 A1 A1 A2
Never born Bow-tie tails
A2 A1 A2 A2 A2
Bow-tie tails Long tails
a. In terms of tail length what kind of inheritance does this gene show?
b. In terms of survival what kind of inheritance does this gene show?
Answer:
a) Autosomal dominant inheritance ⇒ The presence of at least one A1 allele is enough to express Bow-tie tails.
b) Autosomal recessive inheritance ⇒ The presence of at least one recessive allele A2 is enough for individuals to survive.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Sickle cell anemia in the United States disproportionately affects African Americans; 1 in 700 African Americans are affected by sickle cell anemia, while only 1 in 160,000 Americans of European descent are affected. The absolute risk of a newborn African American child having sickle cell anemia is ____________%, and the relative risk compared to a newborn European American child is ____________-fold
Answer:
0.0014; 0.0044
Explanation:
The absolute risk (AR) of a disease refers to the risk of developing the disease over a given time period. In this case, the absolute risk of the newborn African American child having sickle cell anemia is equal to 1 individual with the disease over 700 individuals >> AR = 1 / 700 = 0.0014. Moreover, the Relative Risk (RR) is calculated by comparing the likelihood of the absolute risk occurring between two distinct groups. In this case, the relative risk for the newborn African American having sickle cell anemia compared to a newborn European American child can be calculated by dividing the absolute risk of the newborn European American child with the measured absolute risk of the newborn African American child >> RR = 0.0000625 / 0.0014 = 0.0044.
Discuss the origin of the Neandertals in terms of biological adaptation and other forces of evolution.
Answer:
Neandertals are closest relative to modern humans as their large brains size had to do with their meat diets. There were many theories including the Allens theory or Bergman theory their larger nasal apertures to cold environments.
Smaller bodies are adapted to more hot climates, and larger bodies are adapted to more cold climates as per Bergman's rule. Allen's rule says that the principle that limbs are longer in hot environments and shorter in cold environments.
If the entire mRNA sequence for a polypeptide was AUGUACUCGCGACCGUAA, how many amino acids does the polypeptide have
Answer:
5 amino acids
Explanation:
The process of translation involves synthesizing a sequence of amino acids from a mRNA template. The mRNA molecule is read in a group of three nucleotides called CODONS. A codon specifies or codes for an amino acid.
In the question, a mRNA sequence was given as follows: AUGUACUCGCGACCGUAA. From this sequence comprising of 6 codons, 5 possible amino acids will be contained in the polypeptide encoded by this mRNA molecule as the last codon (UAA) is a STOP codon. The following are the codons in the mRNA sequence and their respective amino acids:
*AUG- methionine (met)
*UAC - tyrosine (Tyr)
*UCG - Serine (Ser)
*CGA - Arginine (Arg)
*CCG - Proline (Pro)
*UAA - Stop
What is the biggest problem of over use of pesticides
Answer:
There have been many issues that have been seen to arise due to the over use of pesticide including:
Explanation:
Overuse has been linked to cancer, Alzheimer's Disease, ADHD, and even birth defects. Along with being reporting to have the potential to harm the nervous system, the reproductive system, and the endocrine system.
Answer:
Pollution.
People applying them are exposed to toxic chemicals. People who live nearby can be exposed too with wind blowing them around.
With rain or just watering of plants, the pesticides 'run off' and end up in water supplies, rivers, lakes, and eventually oceans.
Also, organisms can mutate and make pesticides useless.
in order for polar compounds to enter into the hydrophobic space of phospholipid tails, it would need to break the many ___ bonds
Answer:
In order for polar compounds to enter into the hydrophobic space of phospholipid tails, it would need to break the many hydrogen bonds
Explanation:
In the presence of water, the hydrophobic tails tend to interact with each other, creating a hydrophobic space from which water is excluded and in which other hydrophobic molecules can be trapped, while the polar head interacts with water, and is solvated, preserving the hydrophobic part from all contact with water. For a hydrogen bridge to form, a molecule that has hydrogen attached to an atom of high electronegativity and another molecule that has another electronegative atom with high electron density (that is, a negative partial charge) is required. Water molecules in the bulk of the body of water maintain multiple interactions with other molecules through an extensive network of hydrogen bridges, so for polar compounds to enter, it would be necessary to break many of these bonds.
An example of a pressure vessel is
Answer:
A closed container designed to hold gases or liquids at a pressure substantially higher or lower than the ambient pressure
ons
Question:
how high or low is the blood pressure
and does it change over time when
someone drinks coffee ?
Quantitative data:
blood pressure readings
me.
Qualitative data:
person's
5.
nswer?
Answer:
when people give you the answer plz check me
Answer:
How does caffeine affect blood pressure?
Caffeine may cause a short, but dramatic increase in your blood pressure, even if you don't have high blood pressure. It's unclear what causes this spike in blood pressure. The blood pressure response to caffeine differs from person to person.
Some researchers believe that caffeine could block a hormone that helps keep your arteries widened. Others think that caffeine causes your adrenal glands to release more adrenaline, which causes your blood pressure to increase.
Na + Cl2 --> NaCl if you were given 15 grams of sodium (with excess chlorine) and asked to determine the amount of NaCl that would be produced (in grams), how would you go about doing it. Be as specific as possible and include numerical values when necessary.
Answer:
The correct answer is - 38.15 gm of NaCl.
Explanation:
Write the balanced equation for this reaction of sodium (Na) and chlorine (Cl₂) to produce sodium chloride (NaCl):
2Na + Cl₂ —> 2NaCl
the mass of Na and the mass of NaCl :
Molar mass of Na = 23 g/mol
In the balanced equation = 2 × 23 = 46 g
Molar mass of NaCl = 23 + 35.5
= 58.5 g/mol
similarly in balanced equation = 2 × 58.5 = 117 g
From the balanced equation above,
46 g of Na reacted to produce 117 g of NaCl.
By converting it to 15 grams of Na.
Therefore,15 g of Na will react to produce = (15 × 117)/46 = 38.15 g of NaCl.
Thus, 38.15 g of Na
PLEASE BE QUICK! Question 7 of 35
Why do scientists use microscopes to study cells?
A. Because most cells are too dangerous to view without protection
B. Because it is quite rare to find living things that are made of cells
C. Because most cells cannot be seen without magnification
D. Because cells can be studied only after they have died
SUBMIT
Answer:
C
Explanation:
Most are too small to be seen with the naked eye. so they must be looked at with a microscope
The answer is C) Because most cells cannot be seen without magnification
Without the proper tools, the naked eye will never be able to see a cell. But when you have the correct tools, you will be able to spot them, as long if you know what you are doing. Cells are too small for the naked eye to see, just like trying to find the needle in the haystack without touching it.
A male Bengal tiger is mated with a female Bengal tiger. Orange (O) dominates with(o)coat color. A secondary concern is mating Bengal tigers with alleles for white coats is an occurrence of weak wrist bones. Normal wrist bones (B) dominates weak (b). Both parents are heterozygous for both traits. What is the genotype of the parents? OoBb OOBb OoBB oobb
Answer: i dont know the answer
Explanation: bla bla bla bla bla
One true-breeding line of mice is obese and dark and another is lean and light. Dark is dominant to light, but obese and lean exhibit incomplete dominance. What proportion of offspring from a dihybrid cross should be both dark and intermediate between obese and lean
Answer:
6/16 Intermediate and dark ⇒ 2/16 OoDD + 4/16 OoDd
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
why do the Philippines have generally warm temperature throughout the year?a. it is near the sun b.it has many volcanoes c. it lies near the equator d. it has many islands.what is the correct answer?
Answer:
C. it lies near the equator
One of the livers main functions is to detoxify potentially toxic substances. Which organelle would you expect liver cells to have in abundance?
liver contain abundance of smooth endoplasmic reticulum
When the dry-bulb temperature is 22°C and the wet-bulb temperature is 13°C, the relative
humidity is
1. 10%
2. 33%
3. 41%
4. 59%
Answer:
33 percent is wright
hope it may help you
1. Explain the relationship between the terms species and organism.
Answer:
Organism: An individual living thing
Species: A group of any given organism; a group of many individual living things
A species is defined as the group of organisms in which individuals can reproduce their progeny.
What is Species?A species is defined as the basic unit of classification. This is also taxonomic rank of an organism, as well as a unit of biodiversity. These are the group of organisms which can reproduce with one another in nature and produce fertile offspring.
Species can be divided further on the basis of concept like
1. Typological or Essentialist Species Concept
2. Nominalistic Species Concept
3. Biological Species Concept
4. Evolutionary Species Concept
The species designation which originated in taxonomy, where the species is the basic unit of taxonomy is recognized by the International Commission on Zoological Nomenclature. Every species is have a standard two-part name of genus and species.
Thus, a species is defined as the group of organisms in which individuals can reproduce their progeny.
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how myelinated and nonmyelinated neurons differentiated?
Answer:
The main difference between these two types of neurons is the speed of conduction of impulse. ... Majority of the neurons in the central and peripheral nervous system are myelinated since they require fast conduction speeds. A neuron with unmyelinated axon has a comparatively lower speed of conduction of the nerve signals.
Explanation:
I need help assay about Biopsychology can someone help me?
⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂
✍︎ The core assumption of a biopsychological approach is the fact that illness and health come as a result of a given interplay. In this case it should be known that this interplay revolves around factors like psychological, social and even biological aspects. Most notably, there is always an initiative and attempt to understand the aspect of psychopathology that is done through proper examining.
⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂
꧁❁ ⁱ ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ ❁꧂
9.
I've been called the storage tank
By those with little taste
I'm a sack filled with water,
Food, enzymes, and waste
What am I?
A)Golgi Body (Complex)
B)Endoplasmic Reticulum
C)Nucleus
D)Ribosomes
E)Cell membrane
F)Cell wall
G)Vacuole
H)Lysosomes
I)Vesicles
J)Chloroplast
K)Chromosomes
L)Mitocondria
Answer: G)Vacuole
Explanation:
G)Vacuole is the answer. Hope this helps!
Why does water stop traveling through the soil and remain in an aquifer?
Answer:
Water remains in an aquifer because it has met up with an impermiable layer of clay or rock.
How do scientists create models of past and future climate?
Answer:
To understand how our world is evolving, scientists use computer programs called climate models to forecast future climate. Climate models function in the same way that a computer lab does. Climate models are computer programs that scientists use to analyze how our world is changing.
-------------------------
hope it helps...
have a great day!!
Which toxin is of particular concern for the infected host if antibiotics are used resulting in mass pathogen lysis? Cholera toxin Tetanus toxin Botulinum toxin Endotoxin
Answer: Endotoxin
Explanation:
Antibiotics generally target the cell walls of bacteria with the aim to dissolve it so that the body's immune system can be better able to attack it. When the antibiotics target these cell walls, pathogen lysis occurs and ruptures the cell.
Endotoxins are located in those cell walls and once free, are a source of concern because they can cause an array of medical problems with inflammation being amongst the mildest.
╭☞ Which toxin is of particular concern for the infected host if antibiotics are used resulting in mass pathogen lysis?
ANSWER:╭☞ Endotoxin
Explanation:
Base on our researcher endo toxin is particular concern for the infected host if antibiotics are used resulting in mass pathogen lysisFor More Information:
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Which experiment would most likely contain experimental bias?
Choices see photo…
Answer:
A. A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.
) A field biologist finds an unfamiliar single-celled organism in a sample from the surface of a marshy area. What observations or tests would make it possible to determine whether it is a protozoan, fungus, or alga
Answer:
Genetic analysis, structure analysis and study the behaviour.
Explanation:
Genetic analysis, structure analysis and study the behaviour of organisms are the observations or tests that would make it possible to determine whether it is a protozoan, fungus, or algae because these analysis provides information about the genetic makeup and structure of their cell. If the cell wall is made of chitin then it is considered as fungi, if the cell wall is made of peptidoglycan then it is an algae and if the cell wall is not present then it is considered as animals like protist.
Solutions having osmotic pressures less than those of body fluids are called Group of answer choices hyposmotic. hyperosmotic. magnosmotic. neosmotic. isosmotic. PreviousNext
Answer:
hyposmotic
Explanation:
Body fluids are in contact with cells. Cells are surrounded by a semi-permeable membrane, through which can pass certain solutes. If the concentration inside the cells is different from the body fluids, the water molecules will move from the more concentrated compartment to the less concentrated one. This process is called osmosis.
If the body fluids are more concentrated than cells, the solution is called hypertonic (body fluids are hyperosmic). If the body fluids are less concentrated than the cells, the solution is called hypotonic (body fluids are hyposmotic).
2. Explain two different ways that you could classify the following
items: banana, lemon, sandwich, milk, orange, meatball, salad.
Answer:
Two different ways that you could classify the following items: banana, lemon, sandwich, milk, orange, meatball, and salad, are the following:
Fruits and not fruits, where the fruits would be banana, lemon and orange; and the non-fruits would be sandwich, milk, meatball and salad.
Food of animal and vegan origin, where the food of animal origin is sandwich, milk and meatball, and the vegan food is banana, lemon, orange and salad.
The following food items can be classified based on either plant or animal origins.
Classification of food productsFood is a substance that contains nutrients that is required for the growth and maintenance of the living organisms.
Food can be gotten from various sources which includes plant and animal sources.
Examples of plant sources are banana, lemon, sandwich, orange and salad
Examples of animal sources are milk and meatball. This is because it can be processed from cow and ram.
Therefore, the following food items can be classified based on either plant or animal origins.
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Which of the following is a material?
A. Wood
B. Rigid
C. Transparent
D. Dull
Answer:
A. Wood
Explanation:
Material is a physical object (something made up of molecules, atoms etc.)
Other listed options are characteristic of that given material. For example, an iron bar is a material, but its shiny lustre is its characteristics.
The material out of the given options is wood. Hence, the correct option is (A) Wood.
Material is something that is used to produce an item or thing. It is an essential element of the natural or synthetic substances that are employed for the manufacturing of different products. Material is used in everyday life as well as in the technical industry.
It refers to a substance that can be used as a raw material or as a semi-manufactured product to make an end-product. Materials are used to create a wide range of things, including clothing, food, medicines, buildings, automobiles, and other consumer goods.
Materials can be classified based on a variety of characteristics, including their composition, structure, and properties. Types of Materials: Materials can be classified into the following categories:
1. Natural materials, which include wood, rubber, and leather
2. Synthetic materials, such as nylon and polyester
3. Semi-synthetic materials, such as rayon
4. Composite materials, which include concrete and fiberglass
5. Electronic materials, which include semiconductors and superconductors
Features of materials: Materials have some characteristics, such as a particular physical and chemical composition, density, texture, and color, that differentiate them from other substances. Furthermore, materials can have a variety of properties, including thermal conductivity, electrical conductivity, tensile strength, ductility, and malleability.
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HELP ASAP!!!! 50 points!!
In this task, you’ll record the direction of a compass as it’s placed at different points around a magnet. The investigation will try to answer the question, Do two magnets create magnetic force fields that allow them to interact without touching?
Part D :
How might someone dispute the results of this investigation? How might you counter the argument?
Answer:
It could be argued that there is a separate force acting upon the investigation. Or that the room is invalidating the results for some reason. Or that an error was made in measurement.
There are a thousand and one ways to try to dispute an investigation like this. However, for every argument that can oppose it, a counterargument can easily be made.
For instance, controlling the variables invalidates about 90% of any possible claims to the contrary. The majority of arguments would stem from the fact that it is nearly impossible to completely prove something in fear of external factors. The solution? Control the external factors.
So, in conclusion, a person could dispute the results of the investigation by claiming that something invisible like magnetics could not possibly be proven to exist, because there are all sorts of things that could be influencing the investigation. The way to counter the argument would be to prove yourself that the environment is controlled, and that nothing could be influencing the investigation.
Answer:
guy ontop is correct
Explanation:
