Essentials of Biology Study Set 4

Biology

Quiz 16 :

Evolution on a Large Scale

Quiz 16 :

Evolution on a Large Scale

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Which of the following correctly reflects the division of the history of life on Earth, from most inclusive to least inclusive?
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A

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Members of two different species are never capable of mating.
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True False
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False

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Most dinosaurs became extinct at the end of which of the following periods of the Mesozoic?
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Answer:

B

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Convergent evolution gives rise to analogous structures in unrelated taxa.
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Which of the three domains contain(s) prokaryotic organisms?
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Shared derived traits are found in all members of the ingroup of a clade.
True False
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The ribosomal RNA (rRNA) genes of different organisms are often compared as a means to classify them because rRNA genes evolve much more slowly than other genes.
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Two species are said to be closely related if they
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A zygote fails to undergo mitosis because of a mismatch in the number of chromosomes. This is an example of
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Two organisms present in the same genus are usually more closely related to each other than to organisms in other genera.
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The pollen, or sperm, from a red maple tree is unable to fertilize the eggs from a sugar maple tree. This is an example of what type of isolating mechanism?
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The gradualistic model of speciation is supported by many transitional forms.
True False
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Allopatric speciation is compatible with both the gradualistic and punctuated equilibrium models of evolution.
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Which of the following is a postzygotic isolating mechanism for two species found in the same geographical location?
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A reproductive barrier that prevents interbreeding because the two species mate during different times of the year is called
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Cladograms show the sequence of evolution of the characters in a clade.
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Elaborate courtship behavior in animals, such as with the blue-footed boobies of the Galápagos Islands, is an example of which of the following reproductive barriers?
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Use of chemical signals in mate recognition is a type of postzygotic isolating mechanism.
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In the three-domain system of classification
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Geographic isolation is not a factor in sympatric speciation.
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