HS_Bio Unit 11 Unit Assessment

What happens to a species if its members cannot adjust to environmental changes that are too fast or drastic?

• The opportunity for the species' evolution is lost and the species may become extinct.

• The species will always adapt and thrive in the new environment.

• The species will migrate to a different habitat and survive.

• The species will develop new traits overnight to survive.

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What are some forms of biogeographical physical barriers?

• Wind and climate

• Mountains and water

• Rocks and air

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The fossil record shows that ________________________________.

• Most species have not evolved.

• Some species are evolutionary transitions between major groups of organisms.

• All species today are unchanged from the past.

• All of these are correct.

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In the theory of island biogeography, species richness is a function of what 2 factors?

• A. Island size

• B. Island depth

• C. Island flora thickness

• D. Island distance from mainland

Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps; in fact, the

• more closely related the species, the more similar their DNA sequences

• less closely related the species, the more similar their DNA sequences

• more closely related the species, the less similar their DNA sequences

• DNA sequences are always identical among all species

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A bird’s wing and a butterfly’s wing are considered .

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Brown hair (B) is dominant to blond hair (b). If there are 168 brown-haired people in a population of 200: What is the predicted frequency of homozygous recessive?

• 0.16

• 0.25

• 0.32

• 0.08

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Brown hair (B) is dominant to blond hair (b). If there are 168 brown-haired people in a population of 200: What is the predicted frequency of homozygous dominant?

The evolution of new species by the slow accumulation of small genetic changes over long periods is called ______________. Begin your response with a lower case letter.

• gradualism

• punctuated equilibrium

• mutation

• genetic drift

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Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps; in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in what?

• DNA sequences

• Physical appearance

• Behavioral traits

• Geographical location

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