Phenotypic ratio of a monohybrid cross, Complete dominance- 3:1, monohybrid cross, incomplete dominance- 1:2:1, dihybrid cross, complete dominance&epistasis- 9:3:4.
A monohybrid cross is a genetic mix between two people with homozygous genotypes, or genotypes with completely dominant or completely recessive alleles, that produce opposite phenotypes for a particular genetic trait. This is called a homozygous cross.
A mating experiment between two organisms that are identically hybrid for two traits is referred to as a dihybrid cross. The term "hybrid" refers to an organism that is heterozygous, meaning that it possesses two distinct alleles at a specific genetic position or locus.
Only one allele from the genotype is present in the phenotype in complete dominance. In codominance, the phenotype reflects both genotype alleles. In incomplete dominance, the phenotype consists of a mix of the genotype's alleles.
When one gene's expression is altered (e.g., masked, inhibited, or suppressed) by the expression of one or more other genes, this condition is known as epistasis.
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Some poisonous plants harm people and animals because they produce compounds that are structurally similar to amino acids. Possible reasons why these compounds are toxic include that they _______________ select all correct phrases.
Possible reasons why they produce compounds that are structurally similar to amino acids are toxic include that they
chаnge the finаl folded shаpe of the proteinimpаir the function of proteinsаre recognized by аmino аcyl tRNА synthetаses, аnd аre linked to а tRNА moleculeWhat is the function of protein for some poisonous plants?Plаnts hаve evolved to synthesize а vаriety of noxious compounds to cope with unfаvorаble circumstаnces, аmong which а lаrge group of toxic proteins thаt plаy а criticаl role in plаnt defence аgаinst predаtors аnd microbes. Up to now, а wide rаnge of hаrmful proteins hаve been discovered in different plаnts, including lectins, ribosome-inаctivаting proteins, proteаse inhibitors, ureаses, аrcelins, аntimicrobiаl peptides аnd pore-forming toxins.
The function of а protein is dependent upon the shаpe into which the chаin of аmino аcids folds. Mаny noncovаlent interаctions аre is responsible for mаintаining the protein's shаpe. When we hаve isolаted а protein from аn orgаnism in its proper shаpe, аnd we hаve treаted it with аn enzyme thаt selectively tаrgets аnd breаks only the peptide bonds in the proteins. The protein would not retаin its shаpe under these conditions. While the noncovаlent bonds determine the shаpe of а protein, the peptide bonds аre required to hold the аmino аcids together.
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A cell in the liver begins to divide abnormally. It forms a mass, but then stops dividing. No cells from the mass move into other tissues.
How would you describe this mass?
Group of answer choices
A) It is a benign tumor.
B) It is a secondary tumor.
C) It is a malignant tumor.
D) It is a metastatic tumor.
You describe this mass by the fact that it is a benign tumor. Thus, the correct option for this question is A.
What is a Benign tumor?A Benign tumor may be defined as a type of tumor that is non-cancerous in nature. This type of tumor does not express metastasis and is mostly non-invasive in nature. Benign tumors stop growth after reaching a certain size. These tumors are less fatal to the body.
It is clearly mentioned in the question that it forms a mass but stops dividing after a certain period of time. Hence it is not a secondary or malignant tumor that shows indefinite growth. It also mentioned that no cells from the mass move into other tissues. Hence it is not a metastatic tumor.
Therefore, you describe this mass by the fact that it is a benign tumor. Thus, the correct option for this question is A.
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Remembering that proteins are made in cells that are 70% water- and water is polar-
describe how you might imagine that a protein spontaneously folds up into a complex 3D
shape.
A protein can spontaneously folds up into a complex tridimensional 3D shape by inducing polar domain groups to outside the molecule and hydrophobic domains the inside, which allows forming stable bonds with surrounding water molecules.
What is protein folding?Protein folding is the process for which a protein adopts its final 3D shape, which is fundamental for its function and to form chemical bonds with the surrounding aqueous environment. During folding, protein hydrophobic domains are generally located inside the molecule in order to avoid the repulsion of charges, while polar groups such as R-charged groups are located outside.
Therefore, with this data, we can see that protein folding is fundamental and polar domains are generally located outside the molecule.
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Dermal papillae are numerous in palmar and plantar skin but few in number in the skin of the face and abdomen. What do you think is the functional significance of this difference?.
Dermal papillae help strengthen the connection between the dermis and epidermis and help prevent friction-related damage in high-use areas.
Dermal papillae are found in the papillary layer of the dermis. Two layers make up the dermis, which is located underneath the epidermis' malpighian layer. The dermal papillae, which resemble finger-like projections and extend into the epidermis, are part of the papillary layer, a thin outer layer of alveolar connective tissue. Numerous nerve endings, lymphatic veins, blood vessels, and hair follicles may be found in the dermis. Mesenchymal cells make up the dermal papilla in the hair follicle, which is primarily responsible for controlling hair development. The key to in vitro hair follicle formation and regeneration is maintaining the dermal sheath cells' and DPCs' potential hair inductivity throughout cell culture.
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The conversion of pyruvate to acetyl coa is irreversible. Predict what would happen to fatty acids as a result of this.
The conversion of pyruvate to Acetyl CoA is irreversible. The fatty Acids will not be converted into carbohydrates and the product of this reaction is exergonic.
Why is the conversion of pyruvate to Acetyl CoA irreversible?Pyruvate dehydrogenases are cellular energy metabolisms that link glycolysis and amino acids to lipogenesis and citric acids.
Pyruvate dehydrogenase (PDH) yield an irreversible metabolic step because its under layer, pyruvate is anaplerotic or gluconeogenic, on the contrary acetyl-CoA is not.
This reaction is exergonic because of the formation citrate from Oxaloacetate and Acetyl CoA by citrate synthesis. This reaction releases a total of -31.4kJ/mol energy.
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one of your friends in the class rushes through the gram stain procedure and forgets to add iodine after staining with crystal violet. what color would organisms be at the end of the procedure?
Gram Staining: Gram staining is a laboratory procedure used to identify big bacterial groupings using staining techniques. To identify between gram-positive and gram-negative bacteria, peptidoglycan is stained. The gram staining procedures involve the use of a counterstain, iodine decolorizer, and crystal violet dye.
Why does this occur?Because they have a thick peptidoglycan coating, gram-positive bacteria show up violet during the gram staining procedure. A crystal violet stain is still present in the thick layer. The gram-negative bacteria are covered in a thin layer of peptidoglycan and lose their violet color throughout the decolorization process. Iodine serves as a mordant rather than a stain. The peptidoglycan layer aids in holding the crystal violet in place. In the absence of iodine, it would look purple rather than pink. The gram-positive bacteria's cell wall holds onto the violet hue and prevents it from leaking out during decolorization.
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In eukaryotes, the oxygen-requiring reactions of aerobic cellular respiration occur in cellular organelles called.
In eukaryotes, the oxygen-requiring reactions of aerobic cellular respiration occur in cellular organelles called mitochondria.
The process through which food, in the form of sugar (glucose), is converted into energy within cells is known as cellular respiration. The oxygen-dependent phases of aerobic cellular respiration occur in mitochondria in eukaryotes. Mitochondria can be found in almost all plant and animal cells. Due to this function of mitochondria, they are also called the power houses of the cell.
While the majority of anaerobic, specifically without oxygen, and aerobic, that occurs in the presence of oxygen, respiration respectively occurs in the cytoplasm and mitochondria of the cell, respectively.
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do all human cells obtain glucose in the same way 
Answer:
Animal cells (including humans ofcourse), heterotrophs, derive their energy from coupled oxidation-reduction reactions. Glucose is a primary fuel for heterotrophs. Energy derived from glucose is stored in the form of high-energy phosphate bonds in ATP, or other nucleotide triphosphates, and as energy-rich hydrogen atoms associated with the co-enzymes NADP and NAD .
Glucose is unable to diffuse across the cell membrane without the assistance of transporter proteins. At least 13 hexose transporter proteins with different functions have been identified. Some hexose transporters allow glucose to flow passively from high to low concentration without requiring the expenditure of cell energy. Those that move glucose against its concentration gradient consume energy, generally in the form of ATP.
D-Glucose is the natural form used by animal cells.
So yes it is present inside human cells .
Question 1
In hydrolysis, large molecules are broken down into smaller molecules.
O True
O False
Answer:
True
Explanation:
Hydrolysis is the splitting of molecules with the addition of water
Cellular respiration is a series of metabolic reactions in which the energy from organic molecules, such as glucose, is released and used to synthesize.
Cellular respiration is a series of metabolic reactions in which the energy from organic molecules, such as glucose, is released and used to synthesize energy in the form of ATP.
The chemical reaction that converts glucose and oxygen into water, carbon dioxide, and ATP energy is known as cellular respiration. Oxygen and glucose are the reactants in the process, and the products are water, carbon dioxide, and energy (ATP). Therefore, we can say that cellular respiration is a series of metabolic reactions that is used to synthesize ATP.
The controlled release of energy from organic substances during cell respiration results in the production of ATP. ATP, adenosine triphosphate, is required in every kind of bodily reactions and to conduct various body functions. Mitochondria is the primary site of ATP synthesis in a cell. These organelles consume glucose to convert it into energy molecules and other by-products.
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Organisms
What do that provide?
food products start changing immediately upon harvest. these changes include choose one: a. protein production in animal tissue. b. reduction by exposure to the air. c. conversion of starch to sugars in plant products. d. microbial metabolism.
Food products start changing immediately upon harvest. Option A. protein production in animal tissue.
After the food products are harvested any delay in threshing will lead to a loss of quality of the product. This happens due to reduced atmospheric conditions leading to bruising.
Once separated from their tree, plant, or vine, they go through higher prices of breathing, ensuing in moisture loss, best and nutrient degradation, and capability microbial spoilage. This frequently relies upon the particular nutrient, the commodity, and the postharvest dealing with, storage, and domestic cooking situations.
As soon as a grain crop is harvested, a farmer needs to manipulate its drying and storage. that is the very last level of grain manufacturing. Grain drying is an essential practice that occurs before storage. It reduces the grain moisture by eighty-90% and prepares the crop for in an additional garage.
After harvesting, we want to get the cereal grains from the scaly, inedible chaff that surrounds it. This manner is performed in the course of threshing. it's by far the subsequent step in grain training after harvesting.
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Choose a call sign, broadcast frequency (has
to be AM), and listening area for a campus
radio station based on your research.
Amplitude modulation, or AM for short, refers to a technique for encoding the audio signal on the carrier frequency. AM radio stations are referred to as "mediumwave" stations in various nations.
What is AM broadcasting?AM broadcasting, or radio broadcasting, uses amplitude modulation (AM) transmissions. It is still in use today all over the world, especially for medium wave transmissions (also known as the "AM band") but also on the longwave and shortwave radio bands. It was the first method for creating audio radio transmissions.Using frequency modulation, FM broadcasting is a type of radio transmission (FM). Wide-band FM, developed by American engineer Edwin Armstrong in 1933, is utilized all over the world to deliver high-fidelity sound over broadcast radio. Compared to other broadcasting methods, such as AM broadcasting, FM broadcasting has a higher fidelity—that is, a more accurate reproduction of the original program sound.Amplitude modulation, or AM for short, refers to a technique for encoding the audio signal on the carrier frequency. AM radio stations are referred to as "mediumwave" stations in various nations. Because AM was the first format to be utilized to broadcast radio signals to the general public, they are also frequently referred to as "standard broadcast stations." Due to "skywave" propagation, which happens when the AM signal is bounced off the ionosphere and back to the ground, many AM stations are either daytime-only stations or stations authorized to run at very low power levels at night.Therefore, amplitude modulation, or AM for short, refers to a technique for encoding the audio signal on the carrier frequency. AM radio stations are referred to as "mediumwave" stations in various nations.
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How can we explain the fact that millions of kids watch violent TV shows and remain nonviolent? If there is a TV–violence link, how can we explain the fact that violence rates may have been higher in the Old West than they are today? Do you think kids in violent gangs stay home and watch TV shows?
Kids are most vulnerable to the examples they receive from their immediate caretakers (example, parents, tutors, etc.) Their immediate environment plays a more deterministic role in their behaviour than their hobbies. For example, if a kid is raised in a lovely and supporting family he/she could engage in violent videogames for fun, and not for rehearsal issues (thinking he/she is actually killing). So the early history (wether he suffer any kind of physical/psychological abuse) and the kind of family (wether they are supportive or punitive) plays a critical role in supporting previolent behaviours that videogames or other stuff migth help to develop later on.
Question 8 of 10
What is the next step in the scientific method, following forming a
hypothesis?
O A. Conducting an experiment
O B. Stating the question
OC. Analyzing the data
OC. Analyzing the data is the next step in the scientific method, following forming a hypothesis
What is a hypothesis tested by science?Making conjectures (hypothetical explanations), drawing predictions as logical conclusions from the hypotheses, and then conducting tests or making actual observations based on those predictions are all steps in the scientific method.
The steps of the scientific method should be followed in this order: notice a phenomena, formulate a hypothesis, plan and carry out an experiment to verify the hypothesis, analyse and interpret the data, and then communicate the findings to other scientists.
An "informed guess" is how the term hypothesis is defined. A scientific theory has to satisfy two requirements: it has to be testable, and it has to be falsifiable. It is not considered scientific when a theory cannot be verified by observation.
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the floodplain on either side of a river is a volatile environment subject to frequent flooding. would you expect plants that were r or k strategists to be dominant in the plant community, and why?
Answer: R -Strategists
Explanation: R-Strategists are better suited for rapidly changing environmental conditions.
Triglycerides are the most common lipid found in food and in the body; they consist of a ____________ backbone attached to three fatty acids.
Triglycerides are the most common lipid found in food and in the body, they consist of a glycerol backbone attached to three fatty acids.
Triglycerides are lipid compounds consisting of glycerol esterified with three fatty acid chains of varying lengths and compositions. Triglycerides are a type of fat found in the blood. When you eat, your body converts calories that it doesn't need to use immediately into triglycerides. Triglycerides are stored in fat cells.
The hormone then releases triglycerides for energy between meals. Triglycerides are the major components of body and vegetable fats in humans and other vertebrates. They are also present in the blood, allowing the bidirectional movement of fat and blood sugar from the liver, and are the major constituents of human skin oils. Triglycerides or triacylglycerols are glycerol molecules with three fatty acids attached. It consists of Pendant fatty acids that can be saturated and trans.
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How many different types of alleles for a particular gene are present in a homozygous organism?
a. 0
b. 1
c. 2
d. 3
e. 10
Answer: c. 2 alleles
enzymes: group of answer choices are composed primarily of polypeptides, which are polymers of amino acids. can bind prosthetic groups such as metal ions that participate in enzyme reactions. have defined structures. bind their substrates at active sites.
Polypeptides, which are amino acid-based polymers, make up the majority of enzymes. can bind substituted groups, such as metal ions involved in enzyme activities. They have established structures Active sites are where they bind their substrates.
A polypeptides is a non-branched, continuous chain of amino acids that are bonded together by peptide bonds. By joining the carboxyl group of one amino acid to the amine group of the following amino acid, the peptide bond creates an amide.
As the constituents of muscles, bones, hair, and nails as well as the building blocks of enzymes, antibodies, muscles, and connective tissue, proteins play a significant role in biology. Because they include shorter chains of amino acids than polypeptides, peptides differ from polypeptides.
The protein consists of one or more polypeptide chains. Smaller subunits or amino acids are joined to form each polypeptide chain. Proteins are composed of amino acids and polypeptides, which are the building blocks of proteins.
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according to the triangle of plant life history strategies suggested by grime et al. (1979), what category of plant would you expect to exhibit fast growth and early maturation and to expend a large amount of energy producing seeds?
Triangle of plant life history strategies by grime et al. (1979), a garden weeds category of plants expect to exhibit fast growth and early maturation and to expend a large amount of energy producing seeds.
Plants that are growing in your garden against your wishes are known as garden weeds. Any plant species has the potential to become a weed, however some species are more frequent in New England gardens than others. And to say that it is common in some gardens would be an understatement. Weeds can provide essential ecosystem services like defending and repairing exposed or deteriorated soils. Additionally, some weeds act as habitat for beneficial creatures, which makes a substantial contribution to the natural and biological management of various insect pests. Some weeds can be used to make nourishing food or fodder. Weed seeds are abundant, come from many different places, and have the capacity to remain dormant in the soil for long periods of time before germination. Weeds release hundreds of seeds per plant while they are in active growth, dispersing them.
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Why does a plant need to store glucose...
Answer:
Because glucose is used by plants for energy and to make other substances like cellulose and starch. Cellulose is used in building cell walls. Starch is stored in seeds and other plant parts as a food source. That's why some foods that we eat, like rice and grains, are packed with starch.
Explanation:
Sugars facilitate the assimilation of nutrient elements and their transport by the plant since they reduce osmotic pressure, thus improving their entry into plant tissues. During vegetative development, transport takes place towards the stem and root tips.
What is the structure below? Label all parts of this structure including the polar & no polar regions.
The structure present in the image is of a phospholipid. It has 2 components:
Hydrophilic, polar phosphate head.Hydrophobic, non-polar, fatty acid tails.A phospholipid is one of the main constituent of plasma membranes. It is an amphipathic molecule as it contains the hydrophilic as well as hydrophobic parts. The hydrophilic part is the glycerol backbone along with phosphate group attached to its terminal hydroxyl group.
The fatty acid chain is the hydrophobic portion of the phospholipid that appears on the inner side of the plasma membrane bilayer. One of the two fatty acid chain is unsaturated due to presence of double bonds that gives it a kink.
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What will happen to the red blood cells in a hypertonic solution?Swelling and eventual crenationShriveling while maintaining the volume of cytoplasm.No net movement or shape change to the cells.© The red blood cells will experience crenation.
In an hypertonic solution, red cells would experiment loss of water, which translates into reduction of the volume of the cytosol, and eventually crenation, which means the destruction of the cell by dehydration (D).
which of the following are methods used by biologists to distinguish different species? multiple select question. assessing the ability of individuals of different groups to successfully interbreed observing the outward appearance of individuals assessing whether the organisms occupy the same space determining evolutionary relationships and lineages determining if individuals physically interact with one another analyzing dna or other molecular sequences
The methods used by biologists to distinguish different species are: analyzing DNA or other molecular sequences
observing the outward appearance of individuals
assessing the ability of individuals of different groups to successfully interbreed
determinating evolutionary relationships and lineages
determining the organisms' ecological niches
Scientists use many ways to distinguish different species. Scientists use the DNA of organisms to look for similarities and differences in them. Based on these similarities and differences, they are able to distinguish species.
Assessing the physical traits of an organism also helps in differentiating it from other species.
Evolution is also a big key to determining the relationship and differences among species.
The place where an organism lives and its ecological nice also help in determining the differences and similarities in species.
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The b allele is dominant to the b allele. If two heterozygotes mate, what is the probability that the offspring will also be heterozygous.
The genotype ratio that should result from the cross of two heterozygotes is 1 (homozygous dominant): 2 (heterozygous): 1. (homozygous recessive).
Is BB homozygous recessive, heterozygous, or homozygous dominant?A homozygous dominant genotype is characterised by the presence of two dominant alleles for a characteristic in an organism. This genotype is designated as BB using the example of eye colour. A heterozygous genotype is one in which an organism possesses both a dominant and a recessive gene. This genotype is designated as Bb in our example.
The phenotypes of AA and Aa individuals are identical in total dominance. In incomplete dominance, the phenotype in a heterozygous person is noticeably less pronounced than it is in a person who is homozygous for the dominant allele, resulting in distinct phenotypes for the AA and Aa genotypes.
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the vestibular system is primarily responsible for . question 15 options: 1) sending pain and temperature signals from the skin to the brain; problems would make it difficult to feel pain 2) encoding and processing faces; problems would make it difficult to recognize friends 3) processing body position and motion; problems would make it difficult to maintain balance 4) transforming chemical molecules into electrical signals; problems would make it difficult to smell
The vestibular system is primarily responsible for process body position and movement; problems would make it difficult to maintain balance.
3) process body position and movement; problems would make it difficult to maintain balance.
What is vestibular system?The vestibular system detects the position and movement of the head in space by integrating information from peripheral receptors located in the inner ear. Sensory cells in the posterior labyrinth transform mechanical energy resulting from ciliary movements into a biological signal.
In humans, this system is composed of three semicircular canals that merge in a central region called the vestibule, which has two other vesicular structures: the saccule and utricle, also known as otolith organs.
The utricle presents larger dimensions when compared to the saccule, located in the superior region of the vestibule. There is a tiny area of lining of the saccule and utricle that differentiates into a sensory organ, known as the macula.
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A cell has the following molecules and structures: DNA, enzymes, ribosomes, cell membrane and mitochondria. It could be a cell from:
A) Any type of cell
B) A bactetium
C) An animal cell but not a plant cell
D) Either a plant or an animal cell
E) A plant cell but not an animal cell
Answer:
D
Explanation:
A cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane and mitochondria, it could be a cell from
a) a bacterium.
b) an animal, but not a plant.
c) a plant, but not an animal.
d) a plant or an animal.
e) any kind of organism.
Cells: Prokaryotic vs Eukaryotic and Animal vs Plant
Cells are generally broken into two basic categories based on their structures. Cells that are prokaryotic are smaller and less complex than eukaryotic cells. Prokaryotic cells differ from eukaryotic cells because they do not contain membrane-bound organelles. On the other hand, eukaryotic cells have features like a nucleus and mitochondria as well as a long list of other organelles. Bacteria are a typical example of a prokaryote. Plants and animals are examples of eukaryotes.
Animal cells and plant cells are similar because they are both types of eukaryotic cells. The main differences are that plant cells have other specialized parts not found in animal cells, such as the cell wall and chloroplasts where photosynthesis takes place.
Why is cell division a necessary part of maintaining multicellular life? Help asap giving brainliest!!!
Answer:
In multicellular animals, mitosis is required to maintain a consistent number of chromosomes in all body cells because it produces diploid daughter cells with genetic makeup that is typically identical to that of the parent cell. Mitosos is responsible for the multicellular organisms' growth. As a cell grows, the ratio between the nucleus and cytoplasm is distributed. Therefore, restoring the nucleo-cytoplasamic ratio is crucial for cell division. Cell repair is a very important mitosis-related function. Plants grow continuously throughout their lives as a result of mitotic divisions in the meristametic tissues, the apical and lateral Meristems.
Explanation:
Many people try to eliminate fat from their diets. Which is one reason it is
necessary for humans to eat fat?
Fats are carbohydrates, which give the body energy. They also protect the organs and keep the body warm :)
The images show two different types of Galapagos tortoises that scientists believe descended from the same species. The first type (left) are found on islands that have high vegetation and few grasses. The second type (right) are found on an island that has large amounts of grasses and low-lying shrubs. What explains the type of turtle found on the islands with high vegetation?
The correct explanation for the type of turtle found on Galapagos islands having high vegetation is that (C) the turtles having genes encoding for long necks were able to survive better till they attained reproductive age.
The two types of turtle which can be found on Galapagos islands is largely determined by their feeding habits. The distinct shape of necks which can be observed in these two types of turtle mainly depends upon the type of adaptation that each species has acquired in response to its surrounding environment.
The turtles found on the islands with high vegetation possessed longer necks as compared to the other type. Since the second type of turtle were found in a region with low-lying vegetation, the need to raise the head in order to feed was eliminated in these type of turtle.
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