Evolution Review 24

Which is true about fossils?

• Fossils provide the evidence for the Law of Superposition

• Fossils provide the evidence for the Theory of Evolution

• Fossils provide the evidence for the Laws of Motion

• Fossils provide the evidence for the Law of Gravity

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In the winter, the fur of the arctic fox is white. In summer, the fur darkens to a reddish brown. What most likely causes the fur of the fox to change color?

• the fox's age

• the amount of sunlight present

• the fox's habitat

• the fox's genes

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How does genetic variation affect an organism’s ability to adapt to its environment?

• decreases it

• has no known effect in most organisms

• increases it

• leads to extinction

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Which of these characteristics best helps scientists classify organisms?

• size

• color

• gender

• structure

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A strawberry farmer finds that, after a hard freeze, some of his strawberries are still alive. Which best explains why these strawberries were able to survive?

• They are able to reproduce more quickly than the other strawberries.

• The color of the strawberries is darker, and they maintain their temperature better than other strawberries.

• They have different genetic variations that cause them to be more resistant to cold temperatures.

• They have larger leaves to protect the fruit than the other strawberries.

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Imprints of the shells of ocean clams are often found in the rocks of the Appalachian Mountains. What do these imprint fossils most likely indicate?

• Mountain river clams evolved from ocean clams.

• These mountains were once under the ocean.

• Ocean clams evolved from mountain river clams.

• These mountains once had a more rainy climate.

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A paleontologist found a fossil of an organism that looks like modern-day ferns. Which would most likely assist the paleontologist in proving that the two organisms are related?

• comparing the structures of the fossil to that of modern-day ferns

• analyzing the composition of the rock in which the fossil was discovered

• recording how the tectonic plates have moved since the fossil was created

• mapping the location of where the fossil grew against where modern-day ferns grow

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Which would best allow a species to survive environmental changes?

• similar physical features

• low mutation rate

• small population

• genetic diversity

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The scientific name for a giraffe is Giraffa camelopardalis. What two levels of classification does this name represent?

• phylum and domain

• family and order

• genus and species

• kingdom and genus

The forelimbs of two animals are shown below. Which can best be concluded from this information?

• The animals share a similar ancestor.

• The animals live in the same habitat.

• The animals are the same size and shape.

• The animals use the same method of movement.

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