Answer:
The 2 primary sources of energy that power living systems are photosynthesis and chemosynthesis.
Explanation:
Hope this helps :)
Energy is imperative for durability, growth and many other factors for the living systems.
The two chief sources of energy that power subsistence systems are photosynthesis and chemosynthesis.
Photosynthesis is a method by which plants apprehends the sun energy and carbon dioxide from the surrounding atmosphere and transform them into biochemical energy including oxygen and glucose.The food made by plants are consumed by the herbivores and the food web gets interlinked making it essential for survival.Chemosynthesis involves the synthesis of glucose or simple sugar molecules by bacteria or prokaryotes by utilising the chemical as the source of energy.An example of chemosynthesis is methanogenic bacteria that produce food and methane as a byproduct.To learn more about chemosynthesis and photosynthesis follow the link:
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Explain what the "Green world hypothesis" is. *
Final answer:
The Green world hypothesis suggests that herbivore populations are kept in check by predators, which allows the world to remain green and vegetated, promoting a sustainable and biodiverse ecosystem.
Explanation:
The Green world hypothesis is a concept in ecology that suggests that the world remains "green" with abundant vegetation because predators, parasites, and diseases keep herbivore populations in check, preventing them from consuming all the plants. This balance ensures that ecosystems remain sustainable and plants can continue to fulfill their roles, such as carbon dioxide absorption and providing oxygen. The hypothesis highlights the importance of all trophic levels in maintaining the biodiversity and health of ecosystems.
Without such top-down control, herbivores would overconsume plant life, leading to deforestation and ecosystem collapse. Not only does a biodiverse world support a more stable environment, it also provides psychological benefits to humans, as noted by E. O. Wilson. As the Green Party promotes, preserving the natural environment is crucial for the well-being of the planet and ourselves.
The Green World Hypothesis suggests that herbivores are limited by plant defenses, which allows plant populations to thrive and dominate the ecosystem.
The Green World Hypothesis was proposed by ecologist Henry Gleason in the 1970s. It addresses the structure of ecosystems and emphasizes the role of plants and herbivores in regulating populations within those ecosystems.
The main idea is that while herbivores feed on plants, their populations are kept in check mainly by the defensive structures and chemical compounds that plants develop.
This results in an imbalance favoring plant growth over herbivore populations.
The hypothesis highlights that plants have various defenses such as thorns, toxins, and tough leaves to deter herbivores.Herbivores must expend energy to overcome these defenses, which limits their population size and reproductive success.Consequently, plants can grow and reproduce more effectively when herbivore populations are controlled, leading to a greener and more abundant plant community.This concept contrasts with earlier ideas that emphasized predators as the primary limiters of prey populations.NEED RN 20 POINTS
The variables in the first part of this experiment include the presence of moisture and earthworm behavior. Use the
drop-down menus to identify the independent and dependent variables.
The presence of moisture is the
The earthworm behavior is the
variable.
W variable.
Answer:
The presence of moisture is the independent variable.
The earthworm behavior is the dependent variable.
Explanation:
Based on the nature of variables, the independent variable is the presence of moisture while the dependent variable is earthworm behavior.
What are variables in an experiment?Variables in an experiment are factors on which the result of the expert depend on and can be altered by the researcher.
Variables can be either:
dependent variableindependent variable constant variableThe independent variable is altered by the researcher and produces changes in the dependent variable. The constant variable does not change.
In the given experiment, the independent variable is the presence of moisture while the dependent variable is earthworm behavior.
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• What are the groups of plants and
animals that dominated the eras of
Earth's history?
Answer:
Missed and algae are the earliest plants that Dorminate Earth history.
The groups of animals are sponges, jawless fishes, evolution of amphibians, reptiles and early mammals.
Explanation:
Most animals and plants are classified as muiticellular Eukaryotics. They have many cells and nucleus in their organelles wy some animals or plants are classified as prokaryotics base on relative evolution history.
Both animals and plants owe their origin to endosymbiosis, a process whereby one cell ingests another but fail to digest it. Just like plants, animals evolved from the sea from history and that is why the remained for at least 600 million years.
These key features of schizo affective disorder distinguish it from schizophrenia:____________ a. various psychotic symptoms such as delusions and hallucinations b. persistent delusions that are not bizarre and not due to schizophrenia c. marked symptoms of both
Answer:
These key features of schizo affective disorder distinguish it from schizophrenia
various psychotic symptoms such as delusions and hallucinations
Explanation:
The energy content and biomass of ________ is lowest in a terrestrial food web. The energy content and biomass of ________ is lowest in a terrestrial food web. small carnivores such as spiders and lizards primary consumers top carnivores detritivores and decomposers producers
Answer: top carnivores
Explanation:
The energy content and biomass of top carnivores is the lowest in a terrestrial food web, due to energy losses at each trophic level.
Explanation:Within a terrestrial food web, two types of food webs are commonly identified: a grazing food web and a detrital food web. In a grazing food web, producers like plants serve as the base and are followed by various levels of consumers, including herbivores and carnivores. In contrast, a detrital food web is based on organisms that feed on decaying organic matter, including decomposers and detritivores.
Generally, the energy content and biomass of top carnivores would be the lowest in a terrestrial food web due to the energy lost at each trophic level. The energy content and biomass of primary consumers, such as herbivores, would not be the lowest as they directly consume the producers, which are abundant. Detritivores and decomposers, while they deal with dead organic matter and recycle nutrients, are also not positioned at the bottom of the energy pyramid. It's important to understand that detritivores and decomposers support the food web in a different way by breaking down waste and dead organisms, thus recycling nutrients back into the ecosystem.
How do aquatic factors affect the distribution of aquatic life (include both biotic and abiotic factors)? If possible, please answer in 6 or more sentences!!!
Answer:
Both the biotic and abiotic factors contribute to the distribution of the aquatic life in oceans, rivers etc.
Areas of the ocean which are unfavorable for organisms will have very little biodiversity. On the other hand, areas which have favorable living conditions will have most of the biodiversity of the aquatic life.
Some of the factors on which aquatic distribution depends are:
Temperature: Temperature is one of the crucial factors in determining the distribution of the aquatic life. Lesser fishes will be able to survive the harsh, freezing temperatures, hence the biodiversity will be low in such areas of the oceans. The aquatic distribution will be more in warmer areas of the ocean.
Light: Areas of the ocean or rivers which receive more light will have more plants in those areas. This is because photosynthesis requires light energy from the Sun. More plants means that more aquatic animals will also be present in those areas to feed on them.
Preys: Aquatic distribution will be more in areas where there are larger quantities of small fishes. This is because small fishes are the prey for many bigger fishes.
When the immune system detects a pathogen in the body, it
When a pathogen enters the body, cells in the blood and lymph detect the specific pathogen-associated molecular patterns (PAMPs) on the pathogen's surface. The immune system can be activated by a lot of different things that the body doesn't recognize as its own. These are called antigens. Examples of antigens include the proteins on the surfaces of bacteria, fungi and viruses. ... Sometimes the immune system mistakenly thinks that the body's own cells are foreign cells. Antigens are proteins that are found on the surface of the pathogen. ... The antibodies destroy the antigen (pathogen) which is then engulfed and digested by macrophages. White blood cells can also produce chemicals called antitoxins which destroy the toxins (poisons) some bacteria produce when they have invaded the body.
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-ari.
The Earth has a total land area of approximately 150 million
square km. About how much is covered by rain forest?
A. 1.5 million square km
B. 10.5 million square km
C. 15 million square km
D. 50 million square km
Answer:
C. 15 million square km
Explanation:
The Earth has a total land area of approximately 150 million square km. Scientists estimate that roughly 10% of the entire Earth is covered by Rainforests. That would make the total land mass covered by Rainforests to be about 15 million square km in distance. Although this number is decreasing drastically due to Ranching, mining, logging and agriculture.
Answer:
C. 15 million square kilometer
Explanation:
Rainforest refers areas of the Earth characterised by tall evergreen trees. The rainforest also has high amount of rainfall.
It helps to regulate our climate and provide us with everyday products.
They are structured in four layers which includes:
• Emergent layer
• Canopy layer
• Understory layer
• Forest floor layer
The approximate total land mass of the Earth is 150 million square kilometer.
The rain forest covers 15 million square kilometer of the total land mass of the Earth.
Which of these are associated with the solar wind? Check all that apply.
o produces tides
disrupts communication systems
o composed of charged particles
travels at about 400 km/s
explains changes in the weather
Answer:
Disrupts communication systems
Composed of charged particles
Travels at about 400 km/s
Answer:
B. Disrupts communication systems
C. Composed of charged particles
D. Travels at about 400 km/s
Explanation:
I took the Assignment on ed 2020
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Light energy+CO2+H20=C6 H12 06+02 (the equation for photosynthesis)
Construct an explanation to describe the cycling of matter and energy that occurs during photosynthesis. Use the chemical equation to provide evidence.
Explanation:
Photosynthesis is the process by which photosynthetic organisms transform light energy into chemical energyPhotosynthesis is an oxidative reductive metabolic pathway in which water is oxidized and carbon dioxide is reduced to carbohydrates Light reaction of photosynthesis is concerned with light dependent oxidation of water and synthesis of high energy compounds such as ATP and NADPHAll proteins and cofactors which involves in light reaction are present in thylakoid membrane hence light reaction of photosynthesis completed in thylakoid membrane Transfer of electron and protons in thylakoid membrane is carried out by four protein complexes and two mobile electron carriers Oxidation of one water molecule generates two electrons, two protons and one atom of oxygen Transfer of one electron from Photosystem II (PSII) to Photosystem I (PSI) requires one photon and transfer of one electron from PSI to NADP+ requires one photon, thus transfer of two electrons from PSII to NADP+ requires four photonsFlow of two electrons from cytochrome b6f complex drives transportation of four protons from stroma to lumenThus oxidation of one water molecule establish gradient of 6 H+, gradient of 6 H+ drives synthesis of 2 ATPReduction of 1 NADP+ to NADPH requires two electrons, thus oxidation of one eater molecule generates 1 NADPH
PLZZ HELP!!!
The diagram below shows four processes, A, B, C, and D, by which carbon circulates between the atmosphere, plants, and animals.
Which processes represent respiration?
Process A and Process C
Process B and Process D
Process A and Process D
Process B and Process C
Answer:
the correct answer is D.
Explanation:
Answer:
process a and c
Explanation:
The cell-cycle control system initiates chromosome segregation only after _________ has occurred
Answer:
metaphase
Explanation:
The cell cycle control system initiates chromosome segregation only after metaphase has occurred.
At metaphase, the chromosomes of a dividing cell align at the equator to form what is known as the metaphase plate. Each chromosome gets engaged by spindles from the opposite sides of the poles at the kinetochore of the centromere.
Thereafter, the cell proceeds to the anaphase stage during which the shortening of the spindle fibers pulls the chromosome apart into sister chromatids and this eventually causes the sister chromatids to start migrating to opposite poles of the cell.
Osteoporosis is more prevalent among women than men because women generally
Answer: Osteoporosis is more prevalent among women than men because women generally have more bones in their bodies than men have. take in more calcium than men take in. have lower bone mass than men have. exercise more than men do.
Explanation: Becouse i think thats it
Answer:
Have lower bone mass than men have
Explanation:
What was Thomas hunt Morgan‘s main contribution to science
How does a ring species illustrate speciation in action?
Answer:
Speciation occurs at terminal population groups
Explanation:
A ring species represents a group of organism that has moved beyond a geographic barrier to produce a ring shaped distribution. This population is contiguous and there exists no barrier to gene flow anywhere in the ring except at the terminal populations.
Speciation is demonstrated in the terminal population has become sympatric and it does not interbreed even if they are connected by chain of intergrading or interbreeding populations
1. Which statement best describes the galaxies closest to the Milky way?
These galaxies are independent of and unaffected by the milky ways gravitational pull
These galaxies are all identified as spiral
These galaxies include irregular, spiral, and elliptical types
These galaxies consists mostly old Stars
Answer:
These galaxies include irregular, spiral, and elliptical types.
Explanation:
You're describing the galaxies near the milkyway, and the different types.
I don’t know anything about the 4 types of natural selection can somebody please help me?
Stabilizing – the intermediate phenotype is favored 8. A population of Madagascar hissing cockroaches lives in a woodpile. It suffers heavy predation from lizards. Because their heads are small, the lizards are unable to eat the very largest adult cockroaches, and instead prey upon small and medium sized adults.
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What was found in the "goo" in the beaker of the Miller-Urey experiment?
A) bacteria
B) algae
C) amino acids
D) nucleic acid
Scientists discovered fossils in several layers of the Earth you see here. They found fossils of algae, snails, and clams in layer D. Given that information, where do you think they found fossil evidence of simple land plants and amphibians?
A) A
B) E
C) F
D) G
(This is on USA Test Prep)
Answer:
The answer is C. F
Explanation: I did this on USATESTPREP
Answer:
C
Explanation:
I did it on USATestPrep
What is biodiversity?
A. a lack of different types of plant and animal species within a particular region
B. an abundance of different types of plant and animal species within a particular region
C. the different types of plants and animals that live in freshwater habitats
D. a method of conserving the planet’s small amount of potable water
Answer:
B. an abundance of different types of plant and animal species within a particular region
Biodiversity is the abundance of different types of plant and animal species within a region, which includes species, genetic, and ecosystem diversity. Answer B is correct, as it defines biodiversity as an abundance of different life forms in a region.
Biodiversity refers to the diversity (number and variety of species) of plant and animal life within a particular region. It encompasses the variety of living organisms, including their genetic differences and the ecosystems they form. To answer the question, biodiversity is:
B. an abundance of different types of plant and animal species within a particular region.
There are various types of biodiversity recognized by scientists:
Species diversity, which considers the number and kinds of species present in an area.Genetic diversity, which is represented by the variety of genes within a population and is essential for a species' adaptation.Ecosystem diversity, which includes the variety of ecosystems found in an area or on the planet.Biodiversity is essential for maintaining healthy ecosystems and provides resilience against environmental changes. It contributes to the sustainability of our natural world and is key to the discovery of new resources like food crops and medicines.
Cotton plants produce seeds that contain high-quality protein. This protein could be used as a food source except that the seeds are poisonous to humans. Recently, scientists have inserted a section of DNA into the cotton plants that makes the cotton seeds nonpoisonous. The technique for this procedure is known as _____.
A. gene manipulation B. cloning
C. reproduction
D. direct harvesting
An aquatic arthropod called cyclops house and seen your daughter either small or a bar in the alley of for Barb's is dominant in the same organism resist to the stairs is recessive trait make a key to show possible genotypes and phenotypes of this organism use a rabic you to help you you lost
Answer and Explanation:
The possible genotype and phenotype are as follows
Genotype Phenotype
BbR∧ - Barbed and not resistant to pesticide
BBRR - Barbed and not resistant to pesticide
bbR∧ - Smooth and not resistant to pesticide
bbRR - Smooth and not resistant to pesticide
bb∧∧ - Smooth and resistant to pesticide
Bb∧∧ - Barbed and resistant to pesticide
BB∧∧ - Barbed and resistant to pesticide
Answer:
Explanation:
Check the picture attached to see the answer
. Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Using either a kelp forest or a hydrothermal vent ecosystem as an example, explain how carbon can move through the organisms in that ecosystem
The kelp ecosystem consists of the Kelp(Producers) →Sea urchins( primary consumers)→ Horn shark (secondary consumers)→ Northern elephant seals(tertiary consumers).
Explanation:
Kelp are the producers of this ecosystem in which uses sunlight to produce organic compound which is used by the primary consumers.
The primary consumers are herbivores. They feed on the algae and other plant material( organic material)
The secondary consumers feed on the herbivores. This is also a source of carbon to organism.
Then the tertiary consumer consumes the secondary consumers. So, the flow of energy starts from the producers and continues till the largest group of organism present in kelp ecosystem.
Then when the organism dies the carbon and the organic compound is made available in water by the help of the various bacteria and fungi.
This is how the continuous flow of carbon takes place in the kelp ecosystem.
Producers to herbivore to carnivores and so on.
In kelp forest, carbon can move through the organisms in that ecosystem when the herbivores feed on the vegetation because the producers fixes atmospheric carbon in its body in the form of carbohydrates. The herbivores release carbondioxide in the process of cellular respiration with the addition of water and energy in the form of ATP so in this way the carbon moves in the kelp forest.
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14. The illustration shows forelimb bones for a human,
whale, and bat.
What is similar and different about the three forelimbs?
Answer:
Similarities between the forelimb bones for a human, whale, and bat is that it has one large upper arm bone and two small lower bones. The main difference of the forelimb of human, whale, and bat in their functions.
Explanation:
Humerus is the large upper arm bone which is present in the human, whale, and bat while the radius and ulna are the two small bones which are present at lower side of the forelimb. These forelimbs are also different from one another in respect to function. The forelimb of whale helps in swimming, in bat it helps in flying while in humans it is used to hold things.
Answer: The forelimb of human, whale and bat have a common fundamental anatomical plan and similar embryonic origin (one large upper arm bone, two small lower bones, carpals and metacarpals). The main difference of the forelimb of this 3 mentioned is in their various function
Explanation: the forelimb of human, whale and bat have a common fundamental anatomical plan and similar embryonic origin but with varied functions. They have the larger upper arm bone as the humerus, while the 2 smaller lower bones are ulnar and radius and the carpals and metacarpals in the wrist and hand. The human fore limb function in grasping, whale uses it forelimb (flippers) in swimming while bat uses theirs in flying.
Joseph and his wife Rita, owners of a home in Wexford, are a wealthy elderly couple. Joseph died recently of a sudden death when he was struck by lightning in his metal johnboat while fishing for red fish in the ocean. His body was never recovered. All of Joseph's children and grandchildren (who happened to be at the house at the time for a Father's Day celebration,) eagerly awaited the reading of Joseph's will, since they all knew that he would provide each of his blood relatives with an equal share of his wealth.
When the lawyer arrived to read the will, he noticed that a sum of money was missing from the safe in Joseph's office. The sum missing was equal to one person's portion of the estate value. In addition, a small amount of fresh blood was found on the outside of the safe door, presumably belonging to the thief whose hand most likely got caught on the sharp edges of the safe. As the lawyer was announcing this news, the maid rushed into the room and revealed that she had walked into Joseph's otlice to do her regular dusting and observed the thief quickly slipping out of the patio doors and running away down the beach. She had not seen the face or been able to identify the thief, since he or she wore a mask and a bulky overcoat. She did see, however, that the thief had attached ear lobes sticking out from behind the mask.
The police were called to the home. Upon a1Tival, they immediately ordered blood typing tests on all individuals in the house, and on the blood smear on the safe ( found to be type A-). They also noted the ear lobe type of everyone present.
Answer:
Danny is the thief, stealing all the money.
Explanation:
His son is not related to his family, he would not get any money from Joseph.
This question focuses on Biology, particularly human genetics. The mystery can be potentially solved by examining genetically determined traits of blood type and earlobe attachment and comparing them to all individuals at the scene.
Explanation:The subject of this question is Biology, specifically human genetics. It involves the analysis of traits in an individual, in this case, blood type and earlobe attachment, to solve a mystery. Blood types in humans are determined by genetics, specifically by the ABO and Rh blood group systems. A- blood type is relatively rare, narrowing down possible culprits. Earlobe attachment is also a genetically determined trait, although it's less clear cut than blood type. Nonetheless, it provides another clue. To find the thief, the police would compare blood type and earlobe type among all individuals present, aiming to find a match to both the blood on the safe and the observed earlobe type.
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A mitosis inhibitor is a medication that is designed to prevent mitosis in certain cells. How could these be helpful in the treatment of tumors?
A.
It would prevent carcinogens from entering the cell.
B.
It would prevent tumor cells from reproducing.
C.
It would force the tumors to enter telophase.
D.
It would force the cells into binary fission.
Mitosis inhibitors can be helpful in the treatment of tumors by preventing tumor cells from reproducing (option b).
Mitosis inhibitors are medications specifically designed to inhibit or prevent the process of mitosis, which is the division of cells.
Tumors are abnormal growths of cells that divide and reproduce at an uncontrolled rate.
By using mitosis inhibitors, these medications can effectively disrupt the normal cell division process in tumor cells.
Mitosis inhibitors work by interfering with the microtubules, which are responsible for pulling apart the duplicated chromosomes during mitosis.
By disrupting the microtubules, mitosis inhibitors prevent the separation of chromosomes and the subsequent division of the cell.
This interruption in the cell division process effectively halts the growth and proliferation of tumor cells.
Without the ability to divide and reproduce, the tumor cells cannot continue to grow and spread.
Additionally, mitosis inhibitors may induce apoptosis, which is programmed cell death, in tumor cells.
By preventing tumor cells from reproducing and inducing cell death, mitosis inhibitors can help to shrink tumors and control their growth.
It is important to note that mitosis inhibitors are typically used in combination with other treatments such as chemotherapy or radiation therapy to provide a comprehensive approach to cancer treatment.
In summary, mitosis inhibitors can be helpful in the treatment of tumors by preventing tumor cells from reproducing, thereby halting their growth and potentially inducing cell death.
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Final answer:
Mitosis inhibitors like vincristine and Taxol are helpful in treating tumors because they prevent tumor cells from reproducing by disrupting the normal functioning of microtubules during cell division.
Explanation:
A mitosis inhibitor such as vincristine or Taxol can be helpful in the treatment of tumors because it prevents tumor cells from reproducing. Medications like these disrupt mitosis by binding to tubulin, which is the subunit of microtubules, thereby interfering with microtubule assembly and disassembly during cell division. For example, vincristine stops cellular division by halting cells in metaphase, while Taxol prevents the depolymerization of the spindle fibers, thus blocking the completion of mitosis.
Kim has a poor appetite and has lost a severe amount of weight in the past few months. She is unable to concentrate or make decisions. She no longer wants to live and wishes to die. Psychologists are most likely to diagnose Kim with:
Answer:
Depression
Explanation:
Everything happen to Kim could be treatment.. There is no reason to die. She needs to be strong to avoid the negative things that impact her thinking..Try to be happy, exercise and have good friend... If she keep doing the nice things , the good thing will come to her. I hope this partial ideas will help her to overcome this difficult time.
Final answer:
Psychologists would likely diagnose Kim with major depression, as her symptoms include significant weight loss, poor concentration, and suic-idal ideation.
Explanation:
Given the symptoms described, psychologists are most likely to diagnose Kim with major depression. Major depression is characterized by a combination of symptoms that can include significant weight loss (when not dieting), difficulty concentrating, su-icidal ideation, and a general loss of interest in daily activities or life. These symptoms align with what Kim is experiencing: poor appetite with severe weight loss, an inability to concentrate or make decisions, and an explicit desire not to live. It's crucial for someone with these symptoms to seek professional help, as these are signs of a serious psychiatric condition that requires intervention.
Furthermore, the urgency of the situation is heightened because thoughts of suic-ide or self-harm are present. Su-icide risk is elevated among individuals with major depression, and immediate support from mental health professionals is often necessary to ensure the safety and well-being of the person affected.
If DNA has the code ATGC, what is the complementary code in mRNA?
Answer:
The complementary code for mRNA would be UACG.
Explanation:
DNA pairing has the following pairs: A-T and C-G
RNA pairing has the following pairs: A-U and C-G.
In this case, we would use the RNA pairing rules and find the complementary pairs for the DNA sequence. So the A will pair with U, T will pair with A, G will pair with C, and C will pair with G, giving the complementary mRNA code as UACG.
If DNA has the code ATGC, the complementary code in mRNA will be UACG.
WHAT IS TRANSCRIPTION:Transcription is the process whereby a mRNA molecule is synthesized from a DNA template. The information in the DNA is used to produce a mRNA molecule.
During transcription;
Adenine in DNA pairs with Uracil in mRNAThymine in DNA pairs with Adenine in mRNACytosine in DNA pairs with Guanine in mRNATherefore, If DNA has the code ATGC, the complementary code in mRNA will be UACG.
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Scientific thinking: is there a genetic basis for adapting to life at high altitudes?
Answer:
There is no genetic basis for adaptation at high altitudes, but if different phenotypic manifestations, when an organism develops at high altitudes, the demands for oxygen are greater due to the partial pressure of oxygen in the atmosphere, compared to this, living organisms unleashed a transient or definitive polycythemia
Explanation:
Polycythemia means an increase in the number of red balloons, so that at lower partial pressures of oxygen a greater possibility of gas uptake
Answer:
It might represent an evolutionary strategy
Explanation:
Since higher latitudes are hostile environments, the competence for limited resources may be lower than in regions with optimal conditions, thereby it is also expected that adaptation to this type of condition represent an evolutionary strategy to increase the chances of survival
Explain what makes spotted eagle rays unique.
Answer:
they are spotted
Explanation: