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Which of the following statements about natural selection is most correct?
Before the Industrial Revolution, the vast majority of peppered moths displayed a light-dark color variation with only 2% of the species being a uniform dark grey. Surfaces were darkened by pollution from factories, causing the lighter moths to be eaten more frequently. After the Industrial Revolution, 95% of the peppered moth displayed the uniform dark grey color. This is an example of...
What phrase best describes organic evolution?
Darwin was influenced by a number of early scientists. Which individual pointed out that organisms appear and disappear in the fossil record, refuting the notion that the collection of species on the Earth was "fixed"?
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Over its life span, an individual Thompson's Gazelle has acquired the ability to avoid predators by developing unique strategies for hiding and changing its patterns of migration. Which of the following is true of this characteristic?
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A classic Lamarckian explanation of evolution claims that giraffes stretch out their necks to reach higher leaves and that their offspring, therefore, inherit longer necks. This is a flawed explanation of Darwinian evolution because ...
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Which of the following is a basic requirement for evolution by natural selection?
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Which of the following best defines biological (organic) evolution?
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Which of the following phrases best describes natural selection?
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Suppose that an individual puts weights on his earlobes, causing them to stretch out over time. Which early evolutionary thinker may have proposed that this person could pass his acquired trait on to his offspring?
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