Of the ways that populations can evolve over time, is the only mechanism in which the environment selects for better adapted individuals whereas selects traits by random chance
Q: Which of the following statements is true when considering this figure? It represents natural…
A: ANSWER) (f) all of the above are true. The bottle full of marble and and the jar represents the…
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A: The alleles for linked genes do not segregate during gamete production if two traits are closely…
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A: Option B) Directional selection
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A: Introduction Evolution is the process of a species' features changing over numerous generations…
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Q: Natural Selection causes: * Mark only one oval. Changes in the environment All plants and animals to…
A: Introduction Natural selection:- It is a phenomenon in which organisms possessing favorable traits…
Q: When imbalances occur in the sex ratio of sexual species that have two sexes (i.e other than a 50:50…
A: Natural selection is a wide process that maintains the integrity of a population by encompassing…
Q: Natural selection acts on individual but only population evolve true or false
A: Natural selection is the interaction that drives evolution, choosing against qualities that are not…
Q: Which of the following apply to both genetic drift and gene flow? Both always reduce the observed…
A: Genetic drift is the alteration of allele frequency in a population’s genetic pool while gene flow…
Q: Which of the following is a form of a heritable trait that enhances an individual’s fitness?…
A: Among the given options - Option A) Adaptation is considered as the behavioural or a physical…
Q: As completely as possible, discuss the role of chance and direction in evolution and in determining…
A: Evolution is the process of acquiring certain characteristics that are advantageous over other…
Q: Which statement does NOT represent one of Darwin's observations?
A: Charles Robert Darwin was a geologist, naturalist, and biologist mainly known for his work in…
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A: Correct sequence of events would be: 2--4--1--3
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A: Introduction Evolution is the gradual change in the inherited traits of biological populations over…
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A: The correct answer is option (B) genetic variation will decrease as the genotype with the highest…
Q: True or false: Natural selection, in general, references variation in survival and reproductive…
A: Natural selection is the selection of the organisms that are able to adapt themselves to the…
Q: Ehe following is NOT an observation upon which Darwin's theory of natural selection was based?…
A: Charles darwin proposed the theory of natural selection to explain that how all species have…
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A: Natural selection is the adaptation and alteration of populations of living organisms. Individuals…
Q: In developing his scientific theory of evolution by natural selection, Charles Darwin considered…
A: In biology, evolution is considered the process, which implies a change in the heritable…
Q: Which one of the following statements is true? Multiple Choice Organisms always evolve the…
A: Evolution is the change in the characteristics of the individual over several generations. These…
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Q: The theory of evolution is most accurately described as... * Just an opinion that some scientists…
A: Evolution refers to the mechanism of change in the heritable traits among the population over…
Q: Which of the following would be described as genetic drift?a. the distribution of species resulting…
A: Answer- Genetic drift is the process in which genetic changes arises due to sudden change .
Q: the list at right to the descriptions below. Choose the one BEST answer. Two populations of trout…
A: Natural selection is a phenomenon that was explained by Darwin. According to him there are three…
Q: It results to the change in the gene pool over time. It is considered as an irreversible phenomenon.…
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A: Selection, is the preferential survival and reproduction or preferential elimination of individuals…
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A: The 4 types ypes of selection given in the option are : Directional ,Stabilising ,Sexual and…
Q: n small isolated populations, gene frequencies can fluctuate considerably. The term that applies to…
A: genetic drift
Q: In a population of snails, snails with thicker shells are less likely to be preyed on by crabs than…
A: Ans- Directional selection
Q: Why is genetic variation among individuals beneficial? Genetic variation staves off extinction…
A: The genetic variation is the changes in the genetic characteristics of an organism in the…
Q: Which of these evolutionary mechanisms could result in a population that becomes less genetically…
A: The correct answer is second one that is genetic drift.
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A: Let's see the answer as Galapagos change the environmental conditions. The strange natural selection…
Q: The phenotype(and genotype) of a population is due to a "mosaic" of random and direected processes.…
A: Evolution is a change in the heritable characteristics of biological populations over successive…
Q: Put the following events in the correct order you would expect to see within a population undergoing…
A:
Q: Which of the following can be expected to increase genetic variation within a population? Select…
A: Ans: Genetic variation: The variation in the genome of the organisms is referred to as genetic…
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A: *Natural selection is the process in which Different phenotype individual survive and reproduce…
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A: Introduction A population, often known as a species, is a group of individuals who can all…
Q: Evolution is a change in frequencies of alleles in the gene pool of a population. This definition of…
A: Evolution is a natural phenomenon in which the organisms evolve according to their genetic…
Q: The founder effect is related to genetic drift, and the bottleneck effect is related to genetic…
A: There are two situations where a small population develops from a bigger one: the founder effect and…
Q: An earthquake decimates a ground-squirrel population, killing 98% of the squirrels. The surviving…
A: Evolution is a systemic process that is happening step by step manner to select an organism from the…
Q: Which of these statements is correct? Genetic variation is not random and natural selection is…
A: Evolution is a process through which cumulative changes occur at the genetic level in the…
Q: Natural selection occurs when which of the following conditions are met? Individual organisms…
A: Natural selection can be referred to as the method by which the most well-adapted forms of living…
Q: Which of the following options best explains natural selection? Mark only one oval. An organism with…
A: In evolution the term natural selection coined by Charles Darwin. He gives the idea about the…
Q: Which of the following is NOT a factor that can cause populations to evolve? * Natural Selection O…
A: Evolution is the change in the characters of a species over several generations and relies on the…
Q: Which term below means the loss of all but one allele at a gene locus in a population?a) Bottleneck…
A: Evolution is defined as the change in the characteristics of organisms over several generations. The…
Q: What is the role of variations in a evolution _if heterozygosity is reduced,what happens to the…
A: Evolution is the alteration in the organisms of a population at the gene level that over time leads…
Q: Which of the following statements is false? Natural selection can alter a population's mean trait…
A: Concept of natural selection was given by Darwin. The process of differential survival and…
Q: Select all of the answers that correctly describe genetic drift. a random evolutionary mechanism…
A: Random change in allele frequency due to migration or death of population is called genetic drift.…
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A: When the swap in the relative frequency of various genotypes as a consequence of sudden death or…
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- Which of these conditions should completely prevent the occurrence of natural selection in a population over time? Group of answer choices The population size is large All variation between individuals is due only to environmental factors The population lives in a habitat where there are no competing species present The environment is changing at a relatively slow rateWhen imbalances occur in the sex ratio of sexual species that have two sexes (i.e other than a 50:50 ratio). the members of the minority sex often receive a greater proportion of care and resources from parents then do the offspring of the majority sex. this is most clearly an example of? genetic drift, directional selection, frequency dependent selection, stabilizing selection, or postzygotic barrierWhich of these conditions should completely prevent the occurrence of natural selection in a population over time? Group of answer choices Variation between individuals is not heritable. The environment is changing at a relatively slow rate. The population lives in a habitat where there are no competing species present. The population size is large.
- In which of the following pairs do both evolutionary processes introduce new genetic variation into a population?a. natural selection and genetic driftb. mutation and gene flowc. natural selection and gene flowd. gene flow and genetic drift"In a population, with time the frequency of some alleles/genotypes decreases" describes... Group of answer choices Evolution by natural selection Evolution by genetic drift Any evolution Any phenotypic plasticityThe phenotype(and genotype) of a population is due to a "mosaic" of random and direected processes. Some of these have to do with history; some are related to adaptation, etc. As completely as possible, discuss the role of chance and direction in evolution and in determining the phenotype of a population. (Minimum of 500 words)
- Genetic drift differs from gene flow in that Group of answer choices genetic drift occurs at a steady, but low, rate in all populations while gene flow is largely random event occurring in small populations. genetic drift is most likely to produce a loss of genetic diversity in a population whereas gene flow will often increase genetic diversity in a population. none of these choices adequately describe the difference between genetic drift and gene flow. genetic drift is based on female choice of particular mates but gene flow is largely a product of natural selection.An allele with no effect on fitness arises in a population through mutation and increases in frequency due to genetic drift. This is an example of....? Group of answer choices neither evolution or natural selection both evolution and natural selection evolution only natural selection onlyEach of the following has a better chance of influencing genotype frequencies in small populations than in large populations, but which one has the greatest influence in small populations? Group of answer choices Non-random mating Natural selection Gene flow Genetic drift Mutation PreviousNext
- The offspring of better-adapted individuals are expected to make up a larger proportion of the next generation. Which mechanism of evolution best explains this event? Group of answer choices gene flow and genetic drift mutations and genetic drift mutations and nonrandom mating mutations and natural selectionIn developing his scientific theory of evolution by natural selection, Charles Darwin considered four main observations: heritable variation among individuals in a population, overproduction of offspring, limits on populationgrowth, and differential reproductive success. Compare how these observations may apply to populations that tend to fit the concepts of r selection and K selectionWhich of the following would be described as genetic drift?a. the distribution of species resulting from the movement of the continents as they dispersed from Pangaeab. random mating that occurs in a large populationc. the random changes that might occur in a gene pool as the result of a natural disaster that significantly reduced the size of a populationd. the change in allele frequencies that result from sexual selection
