Evolution review

Evidence of evolution comes in many forms including fossil records and homologies. Select all of the following that would be considered a homology:

• Molecular evidence

• Developmental/ embryonic evidence

• Structural evidence

• Biogeography

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Researchers have discovered that the leg bones of mammals are homologous to some bones in frogs. Which claim is BEST supported by this fact?

• Frogs do not require a sense of sound.

• Frogs and mammals have a distant common ancestor.

• Selection pressures have acted over time on mammals but not frogs.

• Selection pressures have promoted similar evolution in frogs and mammals.

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_______ is the movement of genes between populations.

• Gene flow

• Genetic drift

• Gradualism

• Punctuated equilibrium

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Which statement best defines natural selection?

• A mouse being born stronger and faster than the other mice.

• A rabbit learning where to burrow during the winter months.

• A weasel  born with a camouflage coat surviving and reproducing to increase the coat color in the population.

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In the deep ocean, where the sunlight does not reach, there are fish that have very small eyes. These eyes are most sensitive to blue light, being that that’s the light that is visible at certain depths. Fossils have been found that show these fish once had larger eyes. This change in eye size can be credited to which mechanism of evolution?

• Natural Selection

• Gene Flow

• Genetic Drift

• Non-Random Mating

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Which evidence(s) of evolution proves a common ancestor? (check all that apply)

• Embryology

• Homologous structures

• Fossils

• Analogous

• Vestigial structures

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Select the term that best matches the following definition: random changes in a population that is completely due to chance.

• bottleneck effect

• genetic drift

• evolution

• homologous

Which definition describes a homologous structure?

• Structures with the same structure with a different function

• Structures with different structure with the same function

• Similarities found in stages of early development of organisms

• Remnants of organs or structures that once had a purpose

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Researchers have discovered that the ear bones of mammals are homologous to some bones in fish jaws. Which claim is BEST supported by this fact?

• Fish do not require a sense of sound.

• Fish and mammals have a distant common ancestor.

• Selection pressures have acted over time on mammals but not fish.

• Selection pressures have promoted similar evolution in fish and mammals.

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Some species of hover flies resemble wasps in body coloring and shape.

How does this characteristic appearance MOST likely serve as a useful adaptation to some species of hover flies?

• They are able to pollinate the same flowers as wasps.

• They can colonize wasp nests without being detected.

• They are mistaken for wasps and avoided by predators.

• They can interbreed with wasps and increase species diversity.

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