If a species of ground finch with variation in beak size suddenly had to all compete for large hard seeds, what kind of selection would occur on the species?

Q: How do you think the one species of finch evolved into many different species, each with its own…

A: Darwin's finches are a classical example of adaptive radiation. Their common ancestor arrived on the…

Q: During adaptation what qualifies as the principle Darwinian "individual" in populations that are…

A: Darwinian evolution, also known as the theory of evolution by natural selection, is a scientific…

Q: Do you expect that natural selection acting within a species would increase the population size of…

A: Evolution is the progression of life forms that shares the heritable characteristics and lives a…

Q: Some evening primrose plants (Oenothera biennis) produce seeds that are not palatable to their…

A: Natural selection is a process by which traits that benefit survival and reproduction become more…

Q: A population of chipmunks lives across the length of a valley in the mountains. One day a large…

A: The process of genetic divergence or gene pools of populations to form new species is called…

Q: Hedrick et. al found that wolves in Yellowstone National park, which are gray or black in color,…

A: Selection is a procedure which can be natural or artificial. Natural selection is the process…

Q: Some females seem to prefer the green colouration and some females seem to prefer the blue…

A: stabilizing or balancing selection is where heretozygotes are selected rather than any of…

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: Darwin was fascinated by domesticated species, particularly the different varieties of pigeons. List…

A: James Hutton developed the concept of uniformitarianism. Domestication is a multi-generational…

Q: speciation in the Galapagos finches occurred through geographic isolation

A:

Q: What is the relationship between changes in gene frequencies and adaptations?…

A: The question is asking about the relationship between changes in gene frequencies and 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: Is the fitness of all organisms decreased by inbreeding?

A: Inbreeding refers to a phenomenon in which the mating occurs between the related individuals. These…

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: An event occurs where a large population of photosynthetic sun-basking sharks move to a new…

A: Photosynthetic sun-basking sharks remains on surface and keep their mouths open for 40-60 seconds…

Q: A few finches from the mainland get caught in a strong wind and end up colonizing a new island.…

A: Hardy Weinberg (HWE) principle – In HWE the genotype frequencies and allele frequencies of a…

Q: Would each of the following examples of reproductive isolation be considered a prezygotic or…

A: Reproductive isolation is one of the mechanisms of speciation. Evolutionary mechanisms, behaviors,…

Q: Name two events that must happen for both allopatric speciation and sympatric speciation to occur.

A: The two main components of nature and abiotic and biotic components. The environment constitutes the…

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: Which of the following is an example of stabilizing selection?a. Over time, Equus developed…

A: Evolution is defined as the net directional change in the characteristics of a population over time.…

Q: In a certain species of butterfly, there are three possible color variation: dark brown, mottled,…

A: Natural selection is a fundamental evolutionary mechanism in which certain traits or characteristics…

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: Consider this example. Shorebirds on the Eastern coast of North America feed on the mollusks and…

A: Speciation is the evolutionary process by which new and unique species emerge. Species develop…

Q: As you know chimpanzees in neighboring groups in the forest show 4-5 times as much genetic…

A: The theory that humans and African great apes share common ancestors was proposed by Charles Darwin…

Q: What is the main evolutionary lesson provided by Darwin’s finches on the Galápagos Islands?

A: Darwin’s finches on Galapagos island are the main study model of evolution. Darwin worked for years…

Q: After a fire devastates all of the trees in a wide swath of forest, populations of a species of…

A: Speciation is the process by which the organism evolves from an ancestral group. This occurs when a…

Q: You are studying a genetically modified mouse that produces electric blue fur, which is not a fur…

A: DNA is the genetic material present in all living organisms (except some viruses, but viruses are…

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: Which of the following is NOT true for the speciation of finches in the Galapagos islands? A.…

A: Analyzing Statements about the Speciation of Galapagos Finches:The statement that is NOT true about…

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: If a population is experiencing directional selection with respect to wing color, what type of…

A: Natural selection drives the process of evolution.

Q: Speciation can occur when two populations of a species become separated from each other. What is the…

A: The objective of the question is to understand why speciation, the formation of new and distinct…

Q: Almost all birds starved during the dry season depicted here. What type of selection would have been…

A: Due to different selective environment pressure, the gene pool composition changes, and this is…

Q: How could you create an environment which facilitates natural selection for a beneficial trait for a…

A: The evolution of animals as per the Darwinian theory "natural selection" is affected largely by the…

Q: Which of the following changes would cause directional selection? a A habitat made of trees with…

A: Directional selection  This selection takes place when organisms having characteristics represented…

Q: Simmons and Scheepers in their article Winning by a Neck present evidence that the long neck of the…

A: In a particular ecosystem, it is important to evolve along with the time that may help to live and…

Q: Compare the roles of reproductive isolation, geographic isolation, and competition in the speciation…

A: Introduction  Reproductive isolation permits organisms to evolve to the point where they are…

Q: Which of the following lists events in the proper order to reflect how natural selection works in a…

A: Answer. Natural Selection Selection is a composite of all the forces that causes the differential…

Q: ping in birds is controlled by two alleles (C and c) at a single genetic locus. Birds with genotypes…

A: Paralogs are homologous genes that are related or produced by duplication event within a genome…

Q: What behavioral trait(s) prevents interbreeding between different finch species?

A: Interbreeding is the process in which a species breeds with the same species of different race or…

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: A population of lizards colonizes a region and feeds on small arthropod species. Over time, a small…

A: Speciation is the process through which new species emerge from the existing ones. Speciation may…

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: Is sexual selection or natural selection the driver for the differences between males and females?…

A: In the case of a , natural selection is the driver for difference between male and female.

Q: Species A experiences a mutation that produces a favorable allele to avoid predation by species B.…

A: Evolution is defined as a process in which gradual changes occur in species over long time. It leads…

Pre-Darwinian Concepts