FREE AND STUDY GAMES ABOUT BIO CHAPTER 11 RETAK

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FREE AND STUDY GAMES ABOUT BIO CHAPTER 11 RETAK

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -25 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: a population that has a normal distribution of the range of heights has many individuals who are

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average height and few who are very tall or very short Question 2: when individuals from two populations of squirrels can no longer successfully mate with one another, the chance that speciation will occur

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increases

Question 3: mutations in the DNA of genes that can be passed on to offspring

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result in increased genetic variation

Question 4: the movement of alleles from one population to another is called

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gene flow

Question 5: the wings of robins and the wings of dragonflies are examples of

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convergent evolution Question 6: which of the five factors that can lead to evolution would operate on a change in body color that enabled animals to better hide from predators

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natural selection Question 7: disruptive selection occurs when selective pressures favor phenotypes that are

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at both extremes

Question 8: when a few individuals start a new colony it most likely results in

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genetic drift through the founder effect

Question 9: to be in hardy-weinberg equilibrium, a population must be

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very large, have random mating, no gene flow, no mutations, no natural selection Question 10: if the actual allele frequencies in a population do not match genotype frequencies predicted by the Hardy-Weinberg equation, the population is

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evolving Question 11: a river has cut a deep canyon that has separated a population of rodents into two groups. this separation is an example of what type of isolation

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geographic

Question 12: coevolution is a process in which species

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evolve in response to changes in each other

Question 13: what does being in hardy-weinberg equilibrium mean for a population?

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the population is not evolving Question 14: what occurs when some elephants in a population migrate into another area and join another population

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gene flow Question 15: the combined alleles of all the individuals in a population is called the

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gene pool Question 16: a tsunami has destroyed almost all of the palm trees in an area. this event will most likely lead to

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genetic drift through the bottleneck effect Question 17: a population of squirrels that contains a wide range of phenotypes has a

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large amount of genetic variation Question 18: in a population of foxes, tail length shows a normal distribution. On a graph, this frequency would produce what kind of curve?

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bell-shaped

Question 19: what are two main sources of genetic variation

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mutations and recombination Question 20: the evolution of hummingbirds' beaks and plants with deep tubes in their flowers is an example of

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coevolution

Question 21: reproductive isolation occurs when

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members of different populations can no longer mate successfully Question 22: what type of selection occurs when individuals in a population with the intermediate phenotype are selected for

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disruptive Question 23: two species that are closely related become increasingly different through

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divergent evolution Question 24: what type of isolation occurs when the timing of reproduction is different between two populations?

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temporal Question 25: explain how speciation by adaptive radiation occurs after a mass extinction event

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after a mass extinction takes place, a whole population is wiped out. that leaves the rest of the populations that were adapted to their living situations before the extinction took place to now go where ever they want. ex. dinos and mammals