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10 Cards in this Set
- Front
- Back
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Which of the following reproductive barriers actually prevents individuals of different species from mating with each other? a. hybrid breakdown b. hybrid inviability c. gametic isolation d. hybrid sterility e. behavioral isolation |
E |
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Which of the following is an example of a postzygotic reproductive barrier? a. Two pheasant species perform different courtship dances. b. One species of flower grows in forested areas, another in meadows. c. Two fruit flies of different species produce sterile offspring. d. The sperm of a marine worm penetrate eggs of the same species only. e. One species of frog mates in April; another mates in May. |
C |
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The oldest fossils have been dated to be approximately _____ years old. a. 3.5 billion b. 38,000 c. 3.5 d. 3.5 million e. 3.5 trillion |
A |
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Which one of the following is the correct presentation of a species name? a. homo erectus b. Homo Erectus c. Homo erectus (italicized) d. Homo erectus e. erectus (italicized) |
C |
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What do phylogenetic trees represent? a. the degree of similarity in the habitats occupied by different organisms b. the pattern of continental drift c. anatomical similarity d. which phyla organisms belong to e. the evolutionary relationships among organisms |
D |
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On what basis are populations assigned to the same biological species? a. having 99% of their genes in common b. relating to the environment in the same way c. sharing a common ancestor d. a very similar appearance e. being able to interbreed and produce fertile offspring |
E |
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Bird guides once listed the myrtle warbler and Audubon's warbler as distinct species that lived side by side in parts of their ranges. However, recent books show them as eastern and western forms of a single species, the yellow-rumped warbler.Apparently, the myrtle warbler and Audubon's warbler __________. Bird guides once listed the myrtle warbler and Audubon's warbler as distinct species that lived side by side in parts of their ranges. However, recent books show them as eastern and western forms of a single species, the yellow-rumped warbler.Apparently, the myrtle warbler and Audubon's warbler __________. a. are merging to form a single species b. live in different places c. live in the same areas d. are almost identical in appearance e. successfully interbreed and produce fertile offspring |
E |
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Two species of water lilies in the same pond do not interbreed because one blooms at night and the other during the day. The reproductive barrier between them is an example of _____. a. hybrid breakdown b. ecological isolation c. temporal isolation d. mechanical isolation e. gametic isolation |
C |
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When two frog species, Rana pipiens and Rana sylvatica, mate, the offspring die early in embryonic development. This is an example of ______. a. hybrid sterility b. mechanical isolation c. reduced hybrid viability d. behavioral isolation e. reduced hybrid fertility |
C |
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Three species of frogs—Rana pipiens, Rana clamitans, and Rana sylvatica— all mate in the same ponds, but they pair off correctly because they have different calls. This is a specific example of a _____ barrier, called_____. a. prezygotic ... temporal isolation b. prezygotic barrier ... behavioral isolation c. prezygotic ... gametic isolation d. postzygotic ... behavioral isolation e. postzygotic ... hybrid breakdown |
B |
