Only insects are affected by DDT and the entire web of life is affected by DDT is an example of contradicting opinions or claims (option 1).
What are contradicting opinions or claims?Contradicting opinions or claims can be defined as opposite postures to a given issue in particular such as occurs in this case with the effects of the DDT insecticide on particular taxonomic groups of the entire community of species that inhabit an ecosystem.
Contradicting opinions or claims are usually the subject of concern due to the difficulty to find a point of encounter between people who state such concepts and ideas.
Therefore, with this data, we can see that contradicting opinions or claims are based on opposite statements about an issue in particular such as the effects of an herbicide and or an insecticide (in this case DDT insecticide) on the ecosystem.
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Answer:
DDT creates a decline in the population of birds. DDT impacts the reproduction of fish.
Explanation:
The absorption of fats differs from that of carbohydrates in that _____.
A) fat absorption primarily occurs in the stomach, whereas carbohydrates are absorbed from the small intestine
B) carbohydrates need to be emulsified before they can be digested, whereas fats do not
C) most absorbed fat first enters the lymphatic system, whereas carbohydrates directly enter the blood
D) fats, but not carbohydrates, are digested by bacteria before absorption
The absorption of fats differs from that of carbohydrates because most absorbed fat first enters the lymphatic system, whereas carbohydrates directly enter the blood.
The lymphatic system is a network of small tubes and lymph nodes located throughout the body. These tubes are known as lymphatic vessels or lymph vessels. The lymphatic system is an essential component of our immune system.
Water-soluble nutrients, such as proteins, carbohydrates as well as certain vitamins and minerals, enter the bloodstream via capillaries and are transferred directly to the liver, where they are then transported to whichever organs and the body's tissues necessitate them.
Fats are absorbed through the villi and attempt to enter the lacteal, small lymph vessels known as lymph capillaries, where they become part of chyle, a milky fluid composed of lymph, fats, and free fatty acids. These fats are then transported into the bloodstream by lymphatic vessels.
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A biologist plans to spend a year investigating the mating behavior of a certain species of
frog. To make meaningful observations, the biologist should observe
A) several groups of frogs maintained in different temperatures in the laboratory
B)several groups of frogs maintained on different diets in the laboratory
C)a large number of frogs in their natural habitat
D)a small number of frogs in their natural habitat
Traits exhibiting simple dominant or recessive inheritance are controlled by the expression of _____ set(s) of allelescodominance
One
invariant
heterozygote
homozygote
Traits exhibiting simple dominant or recessive inheritance are controlled by the expression of invariant set(s) of alleles codominance.
Trait of recessive inheritance is the one that first arises or is visibly displayed in the organism. They can easily manage the invariant expressions . Invariant sets are used to control the characteristics of a person. Codominance, as it associates with genetic characteristics, suggests a kind of heritage wherein two versions (alleles) of a comparative quality are conveyed freely to yield different attributes in an individual. That is, as opposed to one trademark being beating the other, the two characteristics appear, for instance, in a plant or animal that has more than one shade tone.
Codominance in individuals, one codominant characteristic that you can't actually see by taking a gander at an individual, yet many individuals are familiar themselves, is blood classification. Individuals with the Stomach muscle blood classification have one An allele and one B allele. Since the two alleles are communicated simultaneously, their blood classification is Stomach muscle.
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Insert the correct terms or phrases into the following sentences that compare DNA replication with transcription. Use this word bank: 3'-hydroxyl group, 5'-Phosphate group, DNA, DNA polymerase, DNA replication, Ligase, RNA, RNA polymerase, tRNA, transcription.
• In transcription, the goal is synthesis of _________________________
• In DNA replication, the goal is synthesis of _______________________
• RNA polymerase and primase both add nucleotides to a _____________________
• During ______________________, both strands of the DNA will function as a template.
• During ______________________, only one strand of the DNA will function as a template.
• In transcription, the goal is synthesis of RNA
• In DNA replication, the goal is synthesis of DNA
• RNA polymerase and primase both add nucleotides to a 3'-hydroxyl group.
• During DNA replication, both strands of the DNA will function as a template.
• During transcription, only one strand of the DNA will function as a template.
The biological process whereby a cell makes an RNA copy of certain DNA. The messenger RNA (mRNA) copy of this RNA carries the genetic material required for protein synthesis in a cell. It transports data from the DNA in the cell's nucleus to the cytoplasm, where proteins are produced.
Through the process of DNA replication, a double-stranded DNA molecule is copied to produce two identical DNA molecules. Because every time a cell splits, the two new daughter cells must have the same genetic material, or DNA, as the parent cell, replication is a crucial process.
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What is most responsible for the presence of groundwater in an area?
Answer:
Explanation:
b
Answer:
Rainfall that has seeped through the soil's surface is what creates the groundwater that is found below the water table. Where the water table naturally meets the land surface, springs are created, enabling groundwater to rise to the surface and eventually flow into a river, lake, or stream.
Explanation:
this is because on ________ alleles, the allele is only carried on the _________ chromosome and not the _________ chromosome.
This is because on the X-linked alleles, the allele was only carried on the X chromosome and not on the Y chromosome.
X-linked alleles are genes that are located on the X chromosome. Men have one X chromosome and one Y chromosome, while women have two X chromosomes. This means that men can only inherit X-linked alleles from their mothers, while women can inherit X-linked alleles from both parents. X-linked alleles are responsible for traits such as hair and eye color, which are passed down from the mother to the son. X-linked traits can also be passed from father to daughter, but this is less common since the father only has one X chromosome. X-linked alleles are also responsible for certain genetic disorders, such as hemophilia and Duchenne muscular dystrophy, which are more likely to affect males than females because males only have one X chromosome.
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Carbon dioxide, water, urea. different organisms have adaptations that allow them to remove cellular waste effectively. They vary according to
Adaptations are unique characteristics that allow animals to survive in their environment. There are three types of adaptations: structural, physiological, and behavioral.
Animals can live in their environment thanks to their special adaptations. Adaptations can be of three different types:
structural,
physiological, and
behavioral.
An animal's capacity to endure or even prosper in its surroundings might be influenced by its physical constitution. The camel species has evolved versatility in order to survive (or change). In order to construct houses, resist the elements, acquire food, stay secure, and attract mates, animals rely on their physical characteristics. Animals can defend themselves against predators and bad weather by adapting. Unlike weeds, insects, and other species that may alter their color to fit in, many birds can conceal themselves in the thick grass. As a result, when they are searching for food, predators have a hard time locating them.
The complete question is:
Different organisms have adaptations that allow them to remove cellular waste effectively. They vary according to___________ .
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Flowering plants and bees have influenced each other’s evolution, providing an example of _______. The idea that life can develop from non-living things, _______, has been postulated in the Oparin-Haldane hypothesis and demonstrated to be possible in the Miller-Urey experiment. The idea that eukaryotes developed when prokaryotes were engulfed by other cells, called the _______, is supported by the fact that mitochondria and chloroplasts have their own DNA.
1. Coevolution.
2. Abiogenesis.
3. Endosymbiont Theory.
What do you mean by abiogenesis and coevolution?When two or more species' evolutions are mutually influenced by natural selection, this is known as coevolution. The phrase is occasionally used to refer to gene-culture coevolution as well as two features within the same species influencing one another during evolution. The natural process through which life has developed from non-living matter, such as straightforward organic compounds, is known as abiogenesis or the origin of life.
What does the endosymbiotic theory of eukaryotic cell genesis entail?According to the dominant explanation, known as the endosymbiotic theory, eukaryotes developed when an ancient Archaean cell fused with an aerobic, ancient bacterial cell (without actually eating it).
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Module 05 What is the definition of metabolism? The breaking down of body compounds is known as what? True or False: Amino acids becoming protein is an anabolic reaction. What is the sugar that helps make up ATP? From which B vitamin is CoA, or coenzyme A, derived? What are the features/characteristics of aerobic metabolism? For short, intense exercise, which energy-producing pathway does the body rely on most? Anaerobic means ________. When a person performing intense physical exercise begins to feel fatigue and a burning pain in the muscles, the muscles respond by synthesizing more of what substance? (Lactate vs. glucose vs. fatty acids?) True or False: Low carbohydrate diets induce ketosis An individual is described as ________ when they have the endurance to engage in daily activities, as well enough reserve energy to handle added challenges. A minimum of ______ minutes at a time of aerobic physical activity is recommended per activity session. ________ refers to an increase to the size and strength of muscles in response to use. True or False: Putting a demand on muscles repeatedly by making them work harder is the most effective, safe way for athletes to add muscle tissue. According to ACSM guidelines, resistance or strength exercise should be incorporated on ________ per week. An athlete getting ready to compete in the 100-meter dash will rely primarily on what substance for quick energy in this event? (Fats vs. lactate vs. creatine phosphate?) The body’s primary source of glucose during physical activity is ________. True or False: With regards to the energy systems and fuels used by the body, all energy systems are used at all times, but one system which dominates depending on intensity and conditioning of athlete. What type of diet does research suggest can provide endurance athletes with ability to go longer without fatigue? ________ are the dietary nutrients most effective at raising muscle glycogen concentrations. Activities lasting longer than 20 minutes will gradually start using more ________ for fuel and less ________. True or False: Consuming a sports beverage to obtain carbohydrates is recommended during exhausting endurance activities lasting more than 1 hour. The phenomenon known as "hitting the wall" occurs in athletes when ________ is depleted. It’s recommended that an athlete
The definition of metabolism is option A: breaking down of body compounds is known as catabolism
Amino acids becoming protein is an anabolic reaction is true
The sugar that helps make up ATP from which B vitamin is CoA, or coenzyme A, derived is Pantothenic acid.
Is the breakdown of protein anabolic?In the ribosomes of a cell, amino acids, smaller molecules, are converted into proteins. Each protein is made up of a chain with a unique arrangement of amino acids. Protein synthesis is anabolic because proteins are constructed from smaller molecules to create larger ones.
Anabolic processes are used to assemble amino acids into proteins. Molecules are broken down into smaller pieces or converted into energy through catabolic processes. Since amino acids are the building blocks of proteins, the process of turning amino acids into proteins is known as anabolism.
Therefore, Another water-soluble vitamin called pantothenic acid creates coenzyme A, the primary transporter of carbon molecules inside of cells. For glucose, fatty acids, and amino acids to enter the citric acid cycle, acetyl-CoA serves as the carbon carrier.
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Which of the following is NOT an Ecological Role of Marsh Grasses?
a. Clean up detritus
b. Prevent shoreline erosion
c. Serve as refuge and nurser
d. Stabilize coastal sediments
e. Remove excess nutrients from runoff
Marshes are wetlands that are frequently or continuously inundated with water and are distinguished by emergent soft-stemmed flora that is adapted to soggy soil conditions. Thus, option E is correct.
What an ecological role of Marsh Grasses?Water quality is maintained by wetlands, and sediments can settle out of suspension because marsh grasses impede run-off. Excess nutrients are removed from the soil by marsh plants, while heavy metals can be removed from water by marsh mud. Wetlands aid in flood management and lessen storm-related erosion.
There are many distinct types of marshes, including freshwater and saltwater ones, coastal and inland, coastal and inland, from prairie potholes to the Everglades.
Therefore, to remove excess nutrients from run-off is not an Ecological Role of Marsh Grasses.
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i need help with all of these please help!!!!! please do not comment something if its not going to help very desperate for help this is science by the way
complete the concept map by correctly placing the phrases or terms provided into the appropriate locations
Volcano destroys all life on a temperate forest island--> primary --> pioneer species, Tornado disturbs a prairie ecosystem--> secondary--> pioneer species
The entire group of creatures and the natural setting in which they live together make up an ecosystem. Through nutrient cycles and energy exchanges, these biotic and abiotic elements are interconnected. Through photosynthesis, energy enters the system and is absorbed into plant tissue. Fishing will be impacted by how many species and ecosystems are affected by climate change. Invasion high rates of local extinction in the tropics and oceans can result from the displacement of marine species caused by warmer waters. Fishing can be negatively impacted by the sensitivity of molluscs, echinoderms, and corals that make up reefs to crustaceans and fish.
complete the concept map by correctly placing the phrases or terms provided into the appropriate locations?
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embryonic development gives us insights into evolutionary relationships not obvious in adults. t / f
True. Embryonic development gives us insights into evolutionary relationships that may not be immediately obvious in adults.
Through the study of embryonic development, scientists can trace the evolutionary history of various species and determine how certain characteristics have evolved over time. Through the use of genetic sequencing, scientists can trace the evolutionary relationships of species, and even determine how far back certain species have been separated from their common ancestor.
Through the study of embryonic development, scientists can also gain insight into how certain species have adapted to their environment over time and how certain characteristics have become more pronounced. Finally, the study of embryonic development can provide insights into how certain species have interacted with each other and how they are related to each other through shared evolutionary traits. By studying embryonic development, scientists can gain a better understanding of the evolutionary history of life on Earth.
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Based on the model of eukaryotic cell cycle regulation shown in the figure, which of the following best describes the effect of a drug that blocks the production of the mitotic cyclin?
The cell would stop dividing as mitosis would be stopped from occurring.
Higher eukaryotes have numerous cyclins and numerous protein kinases related to Cdc2 that control their cell cycles. These Cdc2-related kinases are known as "Cdks" (for cyclin-dependent kinases).
d) Because mitotic cyclins begin to accumulate while cells are in the G2 phase and when they reach their high concentration, they bind with the cyclin dependent kinases (CDKs) and form Mitosis Promoting Factor, which has an impact on the cell cycle by preventing the cell from entering mitosis and causing the cell to stop dividing (MPF). This compound aids the cell's entry into mitosis. Therefore, the MPF won't develop and the cell won't be able to enter the mitosis process if the mitotic cyclins are blocked.
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Complete Question :-
Based on the model of eukaryotic cell cycle regulation shown in the figure, which of the following best describes the effect of a drug that blocks the production of the mitotic cyclin? The cell cycle would proceed uncontrollably, and the cell would become cancerous. The G1 cyclin would functionally replace mitotic cyclin, and the cell would continue dividing normally. DNA synthesis would be prevented, and the cell would stop dividing. The cell would be prevented from entering mitosis, and the cell would stop dividing DOLL esc 2$ %23 4. 6. W. (12 G, Cyclin is Degraded cdk Activated G, Cyclin/odk - Complex cdk Mitotic Cyclin G2 cdk cdk Activated Mitotic G, Cyclin Cyclin/cdk Complex Mitosis Mitotic Cyclin is Degraded DI 24 7\ u
if tyrosine levels in a cns neuron were reduced, the synthesis of which of the following molecules might also be reduced
If tyrosine levels in a CNS neuron were reduced, the synthesis of dopamine molecules might also be reduced.
Dopamine is a chemical ejected in the brain that causes euphoria. Having the appropriate amount of dopamine is essential both for your body and your brain. Dopamine assists nerve cells in communicating with one another.
Tyrosine is a nonessential amino acid the body produces from another amino acid called phenylalanine. It is an essential element for the production of many crucial brain chemicals known as neurotransmitters, which would include epinephrine, norepinephrine, and dopamine.
Because tyrosine aids in the production of the mood-altering chemical dopamine, and because individuals who are depressed frequently have low tyrosine levels, tyrosine can be given to treat depression
Tyrosine is thought to boost levels of the neurotransmitters dopamine, adrenaline, and norepinephrine. It may actually boost memory and effectiveness in stressful conditions by enhancing these neurotransmitters
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Complete question :
If tyrosine levels in a CNS neuron were reduced, the synthesis of which of the following molecules might also be reduced?
A: beta-endorphins
B: acetylcholine
C: GABA
D: dopamine
6. What are nails and hair made of? a. Keratin b. Follicles c. Skin d. Parasites
Two populations of lobsters do not mate because one population lives in the Atlantic Ocean and the other lives in the Pacific Ocean.
Temporal isolation
Habitat isolation
Gametic isolation
Mechanical isolation
Due to the fact that one population of lobsters lives in the Atlantic Ocean and the other in the Pacific Ocean, the two populations cannot marry. Habitat isolation is the result of the two distinct lobster populations' preference for various locations, which reduces the likelihood of them marrying. Option (2) is correct.
In a population, it acts as a barrier to gene flow. Because one population of flowers blooms in the early spring and the other in the late spring, there are no offspring between the two groups. Temporal isolation is a type of biological isolation that happens when the breeding seasons of two members of the same species diverge. Reproductive isolation is the name given to this sort of isolation since it is connected to the emergence of new species.
The position of the various types of shells in a male and female snail of different species prohibits mating from taking place, Mechanical isolation is present here. This is a form of isolation where the capacity to reproduce is hampered by variations in specific physical structures between either of the two species of organisms. The snails were therefore unable to mate because of their shell's orientation. Only the sperm and eggs are released by numerous populations of clams into the same lake area.
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Correct Question:
Two populations of lobsters do not mate because one population lives in the Atlantic Ocean and the other lives in the Pacific Ocean.
1. Temporal isolation
2. Habitat isolation
3. Gametic isolation
4. Mechanical isolation
what is the most likely distance from the nucleus for an electron in orbital c? note: your answer must be within 50 pm of the exact answer to be graded correct.
The most likely distance from the nucleus for an electron in orbital c is 630 p.m.
An electron's location and wave-like behavior in an atom are described by a function known as an atomic orbital in atomic theory and quantum mechanics. The probability of finding an atom's electron anywhere in the vicinity of its nucleus can be calculated using this function.
Atomic orbitals come in four distinct varieties: specifically s (sharp), p (principle), d (diffuse), and f Additionally, each atom-shell contains a few orbital combinations. There are s orbitals in the n=1 shell, p orbitals in the n=2 shell, and s and p orbitals in the n=3 shell.
In order to determine the orbital distance from the nucleus, we first draw a perpendicular to the blue line's highest peak. Also, it's about 630 p.m.
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(complete question)
what is the most likely distance from the nucleus for an electron in orbital c? note: your answer must be within 50 pm of the exact answer to be graded correctly
Here is a sketch of the radial probability distribution of three orbitals:
FILL IN THE BLANK. Following the advice of his dietitian, Frank is going to start preparing/cooking at least one meal each day at home. To get Frank started, the dietitian suggested the following meal: garden salad (romaine lettuce, spinach, cucumbers, peppers, and onions), grilled salmon, and couscous, with an apple for dessert. This meal includes a lot of important nutrients. Specifically, the garden salad, quinoa, and apple contains -_soluble fiber_- which decreases LDL cholesterol, increases fullness (satiety), and increases gastrointestinal health and functioning. In addition, the grilled salmon can decrease the risk of cardiovascular disease because of its ____content, while promoting weight management as a result of its______content..
Following the advice of his dietitian, Frank is going to start preparing/cooking at least one meal each day at home and specifically, the garden salad, quinoa, and apple contain Polyunsaturated-_soluble fiber_- and which decreases LDL cholesterol, the grilled salmon can decrease the risk of cardiovascular disease because of its Omega-3 fatty acid content while promoting weight management as a result of its protein content..
Who is a Dietician?This refers to the term that is used to describe and define an expert in recognizing and treating disease-related malnutrition as well as conducting medical nutrition therapy, such as creating an enteral tube feeding schedule or minimizing the effects of cancer, is a dietitian, medical dietitian, or dietician. cachexia
Hence, it can be seen that the dietician gave Frank a diet to take to help him manage and reverse his medical condition.
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the hierarchy of animal (or plant) taxa, from the most general characteristics to the most specific, is:
The levels of classification, from broadest to most specific, include: kingdom, phylum, class, order, family, genus, and species.
The a lot of classification levels Associate in Nursing organism shares with another, the a lot of characteristics they need in common.
Kingdom
whereas scientists presently disagree on what numberkingdoms there area unit, several support a 5 kingdom (Plants, Animals, Fungi, Protists, Monerans) system.Organisms area unit placed into kingdoms supported their ability to create food and therefore the range of cells in their body.
Phylum (pl. phyla) the primary major division for every kingdom within the kingdom Plantae, phyla area unit typicallyobserved as divisions.
● Plants area unit unremarkably divided into 2 groups: tube and nonvascular.
● within the Animalia, there area unit thirty five completely different phyla. These phyla will be divided into 2 groups: vertebrates and invertebrates.
Class, Order, Family
● These levels become even a lot of specific and can embrace fewer organisms that have a lot of in common with one another as they move down the amount.
Genus (pl. Genera)
● Contains closely connected organisms.
● The genus is employed because the initial word in Associate in Nursing organism’s scientific name.
Species Consists of all the organisms of constant kind that area unitready to breed and turn out young of constant kind.
● The species is employed because the second word in Associate in Nursing organism’s scientific name.
Scientific name
● The scientific name of Associate in Nursing organism is formed from its genus and species.
● it's written in italics (Genus species) with the genus capitalized.
● for instance, gray wolf is that the scientific name for the wolf and pine tree is that the scientific name for a frankincense pine
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Meiotic drive is a phenomenon observed occasionally in which a heterozygous genotype does not produce a 1: 1 proportion of functional gametes, usually because one of the gametic types is not formed or fails to function. Suppose that an allele D shows meiotic drive such that heterozygous Dd genotypes form 3/4 D-bearing and 1/4 d-bearing functional gametes. What is the expected ratio of genotypes in the F2 generation of a monohybrid cross under the assumptions stipulated below? (Hint: Use Punnett squares.)
(a) The meiotic drive occurs equally in both sexes.
(b) The meiotic drive occurs only in females.
Answer:
Explanation:
To find the expected ratio of genotypes in the F2 generation of a monohybrid cross, you can use Punnett squares.
(a) If the meiotic drive occurs equally in both sexes, you can represent the cross as follows:
F1 generation:
DD x Dd
F2 generation:
DD Dd dd
DD Dd dd
In this case, the expected ratio of genotypes in the F2 generation is 1:2:1, which means that there is a 1/4 chance of producing a DD genotype, a 1/2 chance of producing a Dd genotype, and a 1/4 chance of producing a dd genotype.
(b) If the meiotic drive occurs only in females, you can represent the cross as follows:
F1 generation:
DD x dd
F2 generation:
DD Dd dd
DD Dd dd
In this case, the expected ratio of genotypes in the F2 generation is 3:1, which means that there is a 3/4 chance of producing a DD or Dd genotype and a 1/4 chance of producing a dd genotype.
Given year is positive, which expressions for XXX, YYY, and ZZZ will output the correct range? Choices are in the form XXX / YYY / ZZZ.
If XXX: Output "1-100"
Else If YYY: Output "101-200"
Else If ZZZ: Output "201-300"
Else: Output "Other"
a. year > 0 / year > 99 / year > 199
b. year > 0 / year > 100 / year > 200
c. year < 100 / year < 200 / year < 300
d. year < 101 / year < 201 / year < 301
Note that the given year is positive, the expressions for XXX, YYY, and ZZZ that will output the correct range is: "year > 0 / year > 100 / year > 200." (Option B). This is a Range Output exercise in programming.
What is range output?In the context of the above exercise, range output is a string that specifies a range of values for the variable "year". The output would depend on the value of "year", and there are four possible outputs: "1-100", "101-200", "201-300", or "Other".
The above option is correct because the first condition, year > 0, will cover all positive values of the year.
The second condition, year > 100, will cover all values between 101 and 200.
The third condition, year > 200, will cover all values between 201 and 300.
If the year is not within any of these ranges, the final Else condition will output "Other".
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What are the different biotic and abiotic factors in the environment?
Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria, while abiotic are non-living components; such as water, soil and atmosphere.
The two primary forces influencing the ecosystem are biotic and abiotic. As opposed to the non-living elements like physical conditions (temperature, pH, humidity, salinity, sunlight, etc.) and chemical agents (different gases and mineral nutrients present in the air, water, soil, etc.) in an ecosystem, biotic factors refer to all the living things that are present in an ecosystem. As a result, both biotic and abiotic resources have an impact on how an organism survives and reproduces.
Abiotic factors are non-living components of an ecosystem that influence their surroundings. Temperature, light, and water are all components of the terrestrial environment. Abiotic elements in a marine ecosystem would be salinity and ocean currents. A particular ecosystem is produced by the interaction of biotic and abiotic elements. Abiotic elements are found in all the ecosystem's non-living parts. They often include both chemical and physical elements. Abiotic factors are ecosystem components that are not living and have an impact on the environment. Examples include things like water, light, and temperature. Abiotic elements in a marine ecosystem would be salinity and ocean currents.
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In the early 1600s, a scientist planted a willow tree that weighed 5 pounds in 200 pounds of dry soil. He placed it outside and watered it for 5 years. At the end of that time, he observed that the tree had gained 164 pounds 3 ounces, while the soil had
lost just 2 ounces.
a. careful observation, measurements, and inferences from his data.
Which of the following best captures the main worry that the proposed pipeline would undoubtedly raise for many people?Oil from this pipeline might harm the earth, water, and wildlife if it were to leak.
What was the pipeline's true purpose, anyway?830,000 barrels in Alberta tar sands crude oil were planned to be transported daily to refineries along the Texas Gulf Coast.From the refineries, oil oil would primarily be shipped abroad rather than to American petrol stations.
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Which of the following is a characteristic of mitochondria that suggests that they might have evolved from free living bacteria? A. The plasma membrane of a mitochondrion, forming the surface of this organelle, is the site of many important steps of cellular respiration. B. Mitochondria have cell walls. C. Mitochondria have their own DNA. D. Mitochondria rely upon proteins as their source of energy.
C. Mitochondria have their own DNA. suggests that they might have evolved from free-living bacteria.
The majority of the chemical energy required to power the cell's biochemical reactions is generated by mitochondria, which are organelles of the cell that are bound by a membrane (mitochondrion, singular). A small molecule known as adenosine triphosphate (ATP) stores the chemical energy produced by the mitochondria.
Mitochondria and Chloroplasts Could Have Been Primitive Bacterial Cells: This is supported by compelling evidence. The endosymbiotic theory describes this evidence. They have their own transcriptional and translational machinery as well as their own DNA, which is circular like that of bacteria. Bacterial membrane components, mitochondrial ribosomes, and transfer RNA molecules are comparable. Bacterial membrane components, mitochondrial ribosomes, and transfer RNA molecules are comparable.
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A. public demand C. decreased public awareness Which of the following is the reason for the growing availability of free- range meats? B. cheaper prices for meat D. higher disease rates in try COWS
Answer:
Increasing Demand
Explanation:
Answer: public demand
Explanation:
TRUE/FALSE. a researcher placed a culture of cyanobactgeria under green lights. whithin a few weeks, teh appearence of the cyanobactiers changed from green to red. the reaseracher claimed the color change on the culture was the resilt of an adaptation allowing greater photosyntehsis
A cyanobacteria culture was exposed to green light by the researcher. The cyanobacteria went from having a green look to having a red appearance after a few weeks. According to the researcher, the culture's change in color resulted from an adaptation that allowed for more photosynthesis. So, it's true.
The vibrant process of complementary chromatic adaptation may provide as the best illustration of how photosynthetic organisms adjust to variations in light hue (CCA). Depending on their surrounding light color, cyanobacterial cells undergo CCA and transform from brick red to dazzling blue green.
The complexity of the cellular reaction to variations in light color is concealed by the seeming simplicity of this remarkable, photo reversible occurrence. According to recent findings, at least three pathways are involved in the regulation of CCA, which is similarly a complex process. One is regulated by a sophisticated two-component signal transduction system and a phytochrome-class photoreceptor that responds to both green and red light.
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Correct Question:
TRUE/FALSE.
A researcher placed a culture of cyanobacteria under green lights. Within a few weeks, the appearance of the cyanobacteria changed from green to red. The researcher claimed the color change on the culture was the result of an adaptation allowing greater photosynthesis.
The mechanical advantage of a pulley system is 4.00. Using this pulley system, how
much force do you need to exert to lift a 500.0 N box?
Answer: You need to exert 125.0 N of force to lift a 500.0 N box using a pulley system with a mechanical advantage of 4.00.
Explanation:
organism a has a linker dna length of 100 base pairs; organism b has a linker dna length of 60 base pairs. which of the statements about their 10 nm fibers will be true? group of answer choicesO Organism A will have larger "beads" than organism B O Organism A will have smaller "beads" than organism B O Organism A will have longer "strings" than organism O Organism A will have shorter "strings" than organism B O Their 10 nm fibers will look the same
The statement about their 10-nm-fibres will be true if organism A will have shorter "strings" than organism B.
Thus, the correct answer is D.
How to determine the 10-nm-fibres based on a linker DNA length?The human genome contains 3.42 × 10^9 base pairs. Eаch nucleosome is wound by аbout 146 bp of DNА. This nucleosome consists of а histone core consisting of four different histone proteins such аs H2А, H2B, H3 аnd H4.
Hence totаl stretch of DNА between 2 nucleosomes would be totаl DNА wound on а nucleosome + linker DNА which would be
Organism A: 146 + 100 = 246 bp.
Eаch such 246 bp would hаve а single nucleosome, hence the totаl number of nucleosomes would be
= 3.42/246 x 10^9 bp = 1.4*10^7
Organism B: 146 + 60 = 206 bp.
= 3.42/206 x 10^9 bp = 1.6*10^7
Thus, organism A has 1.4*10^7 shorter than organism B has 1.6*10^7.
For more information about the length of linker DNA refer to the link:
https://brainly.com/question/18651196
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the squirting cucumber is diecious. the sexes are determined, not by heteromorphic sex chromosome, but by allele of two genes. the alleles at the two loci govern sexual phenotype as follow: M determines male fertility; m determine female sterility and f determines female fertility. in population of this plant, individual can be made male (approximately 50%) or female (approximately 50%). in addition, a hermaphrodite type is found, but only at very low frequency, the hermaphrodite has male and female organs on the same plant: (i) what must be full genotype of the male plant (ii) what must be the full genotype of the male plant (ii) what is the origin of the rare hermaphrodite?
Answer: The full genotype of a male plant in this population is MMFF. This genotype is determined by the alleles at the two loci that govern sexual phenotype: M (male fertility) and F (female fertility).
The full genotype of a female plant in this population is mmFF. This genotype is determined by the alleles at the two loci that govern sexual phenotype: m (female sterility) and F (female fertility).
The rare hermaphrodite plants in this population are most likely the result of mutations that occurred at one or both of the two loci that govern sexual phenotype. These mutations could have resulted in the expression of both male and female characteristics on the same plant.
I hope this helps! Let me know if you have any other questions.
