Most scientists think that a small group of finches colonized the Galápagos Islands thousands of years ago. They would have been the only seed-eating birds on the islands. Suppose one island was very dry and another had plentiful rainfall. What might happen to the finch populations after millions of years? Demonstrate an understanding of evolutionary processes (such as directional selection, stabilizing selection, disruptive selection, sexual selection, gene flow, genetic drift) and variation, heritability, reproductive advantage to natural selection.

Q: Does this activity demonstrate evolution? Does it demonstrate natural selection? Why or why not?

A: The objective of the question is to determine whether the given activity demonstrates evolution and…

Q: Applying your knowledge of genetics, natural selection and evolution, how is the positive response…

A: Discovering the genes that enable coral colonies to endure in rising waters would enable genetic…

Q: A recessive lethal allele has achieved a frequency of 0.22 due to genetic drift in a very small…

A: The frequency of the recessive allele would be about 0.13.

Q: A scientist attempts to maintain a population of pea plants in a “non-evolving state” by trying to…

A: Hardy-Weinberg equilibrium is a mathematical model used to describe the genetic equilibrium of a…

Q: The peppered moth, Biston betularia, occurs as light- or dark-colored variants. Prior to the…

A: Directional selection is a type of natural selection in which a certain trait or characteristic…

Q: For a chamelons ability to color change, what type of selection (directional selection, stabilizing…

A: Natural selection can bring the adaptive evolution . It will increases the frequency of allele that…

Q: In a population of Darwin’s Finches (Geospiza sp.) there is a large variation in beak size. Grass…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the difference between genetic drift and natural selection? Genetic drift is the random…

A: The branch of science which is concerned with the study of genes is known as genetics. It involves…

Q: In the Grants’ study of the medium ground finch, do you think the pattern of natural selection was…

A: Speciation means emerging a species from the existing one. There must be a population due to some…

Q: Björk and Pitnick (2006) investigated sexual selection in Drosophila melanogaster. Which of the…

A: Natural selection affects populations by influencing who lives and reproduces. Adaptations,…

Q: When we take, say, 100 individuals of a species of beetle from the wild and place them in a new…

A: Each environment that an organism inhabits is distinct from the others. Its natural habitat is…

Q: You are asked to assess whether a population of endangered salamanders can adapt to warming climate…

A: Natural selection and genetic drift are the forces of evolution.

Q: Which of these observations about genetics influenced the principles of natural selection? Select…

A: Natural selection  Natural selection is a process in which organisms modify their self according to…

Q: Imagine a population of beetles living in someone's backyard. The beetles inhabit several different…

A: Variation refers to the differences in traits or characteristics that exist between individuals…

Q: A population genetic survey revealed that a small subpopulation of species X, and nowhere else, has…

A: The answer is True.

Q: This figure can be used to represent the sequence of events leading to the evolution of dark-furred…

A: Evolution is the change in the characteristics of a species over several generations and relies on…

Q: For each of the following situations, indicate if it is best explained by (A) directional selection;…

A: Directional selection : It is also called positive selection. When an extreme phenotype is favoured…

Q: Number of medium ground finches 40 30 20 10 0 7.3 7.8 8.3 8.8 Average 9.3 9.8 10.3 10.8 11.3

A: Natural selection is a driving force that causes evolution.

Q: It is estimated that every human carries at least one recessive lethal allele (i.e. they are…

A: In diploid organisms such as humans, the efficacy of selection on a deleterious mutation depends…

Q: A population of bats is found on an island.  A detailed study of the bats reveals that the average…

A: In the given case, there is natural selection in which the population stabilizes on the individuals…

Q: Of the three patterns of natural selection presented in this discussion, which one always results in…

A: BASIC INFORMATION EVOLUTION The theory of evolution was first given by the Jean Baptist de Lamark.…

Q: How do the rest of the vocabulary terms (the ones you didn't use below) apply to what you observed…

A: Natural selection is the process by which organisms change and adapt to changing  environmental…

Q: Modern evolutionary theory now shows exception to Charles Darwins' proposal that populations show…

A: False Darwin defined evolution as "descent with modification," the idea that species change over…

Q: Would it have made a difference if natural selection had acted on the dominant allele instead of the…

A: Alleles are different versions of a gene. They are classified as dominant or recessive based on…

Q: Which type of natural selection is this an example of? -stabilizing selection -sexual selection…

A: Natural selection  A kind of evolution that is based upon nature. The nature select the organism…

Q: Consider the speciation event via which your species O. virginianus White tail deer split from…

A: Speciation is a lineage-splitting evolutionary process that produces two or more separate…

Q: if gametes from a gene pool combine randomly to make only a small number of zygotes, the allele…

A: Any cumulative or net change in an organism's or population's characteristics over a long period of…

Q: population of birds has two alleles encoding for three different phenotypes: long wings, wingsss,…

A: The Hardy–Weinberg principle is based on the following assumptions: (1) random mating (i.e., there…

Q: For this natural selection story, focus on just ONE GENETIC TRAIT that has two alleles. This is a…

A: Once upon a time there was a population of polar bears. Most of the polar bears…

Q: The Amish community in Eastern Pennsylvania stemmed from a small closed population of around 200…

A: The bottleneck effect is an evolutionary phenomenon where a population reduces significantly to a…

Q: Imagine a remote island inhabited by a population of lizards. To determine if this population is in…

A: When a population is in Hardy-Weinberg equilibrium for a gene, it is not evolving, and allele…

Q: Match the following statements with the appropriate term The terms are: a.Genetic polymorphism b.…

A: Introduction  Evolution is the process of a species' features changing over numerous generations…

Q: Based on the information provided, what is the number of adults after the natural selection? Embryo…

A: Formula:BB: Number of embryos × Relative fitnessBb: Number of embryos × Relative fitnessbb: Number…

Q: What did the Scottish geologist and plant-breeder James Hutton claim about a possible evolutionary…

A: PLEASE LEAVE A HELPFUL RATING. THANKS

Q: Suppose there is a type of deleterious mutation in a particular human gene that causes death very…

A: There are few important points : We know that heterozygous deleterious mutations can give rise to…

Q: Give a Darwinian explanation of how cheetahs evolved to become faster. Your explanation is how…

A: Darwin explains that how animals could introduce evolutionary features to exists in nature. The…

Q: The origin of grazing proto-horses (Merychippus gunteri) from browsing near-horses (Parahippus…

A: Anagenesis It is defined as the mechanism by which one species evolves into another through…

Q: Based on (MS-LS4-4) standard(grade8) - Mathematical Representations of Natural Selection: Based on…

A: The Darwin's finches are a group of closely related bird species that are endemic to the Galapagos…

Q: Match the following examples with the type of natural selection they are describing: .A…

A: Natural selection is a key process that triggers evolution. It can be defined as the process in…

Q: Considering the principles of mutation , natural selection , and genetic drift do you expect…

A: Introduction: A change in allelic in a population that occurs by chance from generation to…

Q: A spider is found high on several mountain tops.  The spider species is not capable of living in…

A: A. Sexual selection is not possible because only the color is different and a change in color…

Q: 300 carries the allele for this disease. However, in some populations, including the Irish…

A: The first option is correct that is all three populations descend from a small number of settlers.

Q: If you had measured a set of morphological traits (beak depth, wing length, leg length, tail length,…

A: After the action of selective forces (drought in this case) the individuals with shallower beaks…

Q: some bears, such as those with thin or no hair, moved south and other bears with very thick fur…

A: * The polar bears with thin or no hair move towards the and other bears with thick fur stayed in…

Evolutionary adaptations

Evolutionary adaptation is the process through which organisms adapt or adjust to their surroundings to increase the chances of survival, mating, and reproduction. An organism's behavior, physiology, and structure are adjusted or changed to make it more suited to its environment.