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Which of the following is NOT an example of natural selection?
A. Plants with thorns are less likely to be eaten by herbivores than other members of the same species that lack thorns.
B. Bacterial populations in hospitals develop resistance to drugs used to combat infection by them.
C. Scientists breed cows that give greater amounts of milk than their ancestors.
D. Fruit fly larvae with an enzyme to break down alcohol are better able to feed on fermenting fruit than those that lack the enzyme.
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The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?
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Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human
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The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian
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Which of the following is NOT an example of natural selection?
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