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Biology

Quiz 11 :

Evidence for Evolution

Quiz 11 :

Evidence for Evolution

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Neanderthal fossils
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B

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Breeding programs for farm-raised chickens result in a variety of unusual colors and feathers.Is this an example of evolution?
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D

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Natural selection
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B

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Which of the following statements about evolution is true?
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What is biological evolution?
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Cultivation of corn over thousands of years has resulted in a modern corncob that looks very different from the tiny ancestral cob.Does this support the concept of evolution?
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Two fossils are found in a hillside.Fossil A was found in an upper layer and fossil B was found in a lower layer.Which of the following statements is true?
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Which of the following statements regarding the evolutionary history of an organism is FALSE?
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Humans simulate the process of natural selection when they use ________ to develop new varieties of crop plants that better meet the needs of farmers.
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Natural selection tends to
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The result of ________ over evolutionary time spans is that alleles that allow organisms to survive and reproduce at a higher rate than other individuals become more common in the population.
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A group of scientists proposed that mammals with fur that contrasts with their background are hunted more by predators than mammals with fur that blends in with their background.After running several experiments,the scientists found that dark mice were attacked 25 percent of the time in a dark habitat and 75 percent of the time in a light habitat.The light-colored mice were attacked 25 percent of the time in a light habitat and 75 percent of the time in a dark habitat.These data
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Peppered moths are generally light in color and blend into the trunks of the trees on which they live.Populations of peppered moths found in areas where soot has blackened the tree trunks are dark in color.This example demonstrates
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One of the reasons scientists have had so much difficulty finding a cure for HIV/AIDS is that the HIV virus is quick to evolve resistance to the drugs used to treat it.What is the most likely mechanism for this type of evolution?
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Bears have thinner bones than whales.Hippopotami have intermediate bone thickness.What hypothesis does this support?
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Fossils found in deeper layers are ________ than fossils found in more shallow layers.
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Equus (horses)have a single toe on their hoof,while Hyracotherium (the ancestor to horses)had four toes.Which of the following evidence would support this conclusion?
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The fossils of Pakicetus,Ambulocetus,Rodhocetus,and Dorudon are examples of ________,demonstrating the fifteen million years of evolution between Indohyus and Balaena (modern baleen whale).
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The fossil record
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Evolution is
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