Imagine there are two populations of the same species of squirrel. One population lives on one side of a large river, while the other lives on the opposite side. Over the course of a few million years, the river carves an impassible canyon between the two populations. Eventually, they become two new species. This is an example of: O Hardy Weinberg Equilibrium O Sympatric Speciation O Allopatric Speciation. Gene Flow

Imagine there are two populations of the same species of squirrel. One population lives on one side of a large river, while the other lives on the opposite side. Over the course of a few million years, the river carves an impassible canyon between the two populations. Eventually, they become two new species. This is an example of: O Hardy Weinberg Equilibrium O Sympatric Speciation O Allopatric Speciation. Gene Flow

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter20: Speciation And Macroevolution

Section: Chapter Questions

Problem 5TYU: The pupfishes in the Death Valley region are an example of which evolutionary process? (a)...

See similar textbooks

Similar questions

Consider this example. Shorebirds on the Eastern coast of North America feed on the mollusks and tiny crabs along the shore. Birds with tougher beaks are better adapted to crack open the shells of the mollusks, and birds with sharper beaks are better adapted to pierce the shells of crabs. Over time, the shorebirds become two separate species that no longer breed with one another. What type of speciation has occurred? A. Sympatric speciation B. Adaptive speciation C. Microevolution speciation D. Allopatric speciation
Which of the following events is part of macroevolution?a. speciationb. mutationc. gene flowd. natural selectione. All of these are correct.
In _____________, new species of a lineage move into a wide range of habitats by way of bursts of microevolutionary events. a. an adaptive radiation b. natural selection c. genetic drift d. punctuated equilibrium
Two species of fish had recently undergone sympatric speciation. The males of each species had a different coloring through which females could identify and choose a partner from her own species. After some time, pollution made the lake so cloudy it was hard for females to distinguish colors. What might take place in this situation?
Figure 18.23 Which of the following statements is false? Punctuated equilibrium is most likely to occur in a small population that experiences a rapid change in its environment. Punctuated equilibrium is most likely to occur in a large population that lives in a stable climate. Gradual speciation is most likely to occur in species that live in a stable climate. Gradual speciation and punctuated equilibrium both result in the evolution of new species.
Match the evolutionary concepts. ____gene flow a. can lead to interdependent species ____sexual selection b. changes in a populations allele frequencies due to chance alone ____extinct c. alleles enter or leave a population ____genetic drift d. evolutionary history ____phylogeny e. operates on variation in shared traits ____adaptive radiation f. adaptive traits make their bearers better at securing mates ____derived trait g. no more living members ____coevolution h. diagram of sets within sets ____natural selection i. burst of divergences from one lineage into many ____cladogram j. present in a group, but not in any of the groups ancestors
According to the punctuated equilibrium model, (a) populations slowly diverge from one another (b) the evolution of species occurs in spurts interspersed with long periods of stasis (c) evolutionary novelties originate from preadaptations (d) reproductive isolating mechanisms restrict gene flow between species (e) the fossil record, being incomplete, does not accurately reflect evolution as it actually occurred
The pupfishes in the Death Valley region are an example of which evolutionary process? (a) background extinction (b) allopatric speciation (c) sympatric speciation (d) allopolyploidy (e) paedomorphosis
The first step leading to allopatric speciation is (a) hybrid inviability (b) hybrid breakdown (c) adaptive radiation (d) geographic isolation (e) paedomorphosis
Sometimes physical elements can prevent several of the individual composing an original population from mating with each other on a regular basis, eventually engendering different species. This process is called: Question 5 options: A) Gene flow. B) Genetic Drift. C) Speciation. D) Allopatric Speciation. E) Sympathetic speciation.
When two populations are reproductively isolated, what else must occur for speciation to happen? (a) gene ﬂow (b) genetic divergence (c) coevolution (d) convergent evolution (e) none of the above
A group of birds colonize an island. Over time, they become different from the mainland source population and reach the point where they can no longer interbreed with one another They are now called _________________ and the process is called ________________speciation. 1) 2) 3) 4)