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1 | |
Charles Darwin believed that evolution occurred gradually while Stephen Jay Gould contends that evolution occurs in periods of rapid change. (p. 50) |
| | A) | True |
| | B) | False |
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2 | |
Temperatures below freezing for more than 12 hours are the _______ for the giant saguaro cactus. (p. 51) |
| | A) | ecological niche |
| | B) | tolerance limit |
| | C) | habitat |
| | D) | biotic potential |
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3 | |
The acquisition of a trait that allows a species to survive in its environment is called _______. (p. 52) |
| | A) | adaptation |
| | B) | commensalism |
| | C) | biotic potential |
| | D) | diversity |
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4 | |
Predation, physiological stress, competition, and luck can cause selective pressure in a species. (p. 52) |
| | A) | True |
| | B) | False |
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5 | |
The process that causes unrelated organisms to develop similar appearances and behavior in similar environments is called divergent evolution. (p. 53-54) |
| | A) | True |
| | B) | False |
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6 | |
Which of the following is the correct sequence of taxonomic organization? (p. 54) |
| | A) | Class, Order, Species, Genus, Family, Kingdom, Phylum |
| | B) | Family, Class, Order, Genus, Species, Phylum, Kingdom |
| | C) | Kingdom, Phylum, Class, Order, Family, Genus, Species |
| | D) | Kingdom, Order, Class, Phylum, Genus, Species |
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7 | |
The ecological niche of an organism includes how it obtains food, its relationship with other organisms, and the services it provides to the community. (p. 54) |
| | A) | True |
| | B) | False |
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8 | |
Which of the following is NOT true about “weedy” species? (p. 55-56) |
| | A) | They have a very specialized niche. |
| | B) | They are able to quickly colonize bare ground. |
| | C) | They can endure environmental change. |
| | D) | They can quickly out-compete other species. |
| | E) | None of the above. |
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9 | |
Scavengers, detritivores, and decomposers are considered predators because they feed on dead prey. (p. 57) |
| | A) | True |
| | B) | False |
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10 | |
Which of the following is NOT a commensal relationship? (p. 58) |
| | A) | cattle and cattle egrets |
| | B) | epiphytic plants and tropical trees |
| | C) | cyclamen mites and strawberries |
| | D) | none of the above |
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11 | |
Batesian mimicry refers to species that are normally harmless but have evolved the physical characteristics or appearance of a poisonous or unpalatable species as a defense mechanism. (p. 59) |
| | A) | True |
| | B) | False |
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12 | |
In the predator-prey relationship between the Canada lynx and the snowshoe hare, the populations oscillate so that when the hare population is high and food is plentiful, lynx reproduction is low and populations decrease. (p. 61) |
| | A) | True |
| | B) | False |
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13 | |
Logistic growth occurs when a species grows exponentially due to unlimited resources. (p. 62) |
| | A) | True |
| | B) | False |
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14 | |
Which of the following is characteristic of K-selected species? (p. 63) |
| | A) | high prenatal care |
| | B) | pioneer species |
| | C) | short life |
| | D) | many small offspring |
| | E) | none of the above |
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15 | |
Which of the following ecosystems has the greatest amount of productivity? (p. 64) |
| | A) | tundra |
| | B) | tropical forests |
| | C) | open ocean |
| | D) | grasslands |
| | E) | b and c are correct |
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16 | |
The boundaries between adjacent communities are called _______. (p. 69) |
| | A) | the edge effect |
| | B) | climax communities |
| | C) | ecotones |
| | D) | none of the above |
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17 | |
Which of the following is NOT an example of secondary succession? (p. 70) |
| | A) | an abandoned field |
| | B) | bare rock |
| | C) | a clear-cut forest |
| | D) | a burned field |
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18 | |
The process by which plant species modify their environment over time is called ecological succession or development. (p. 70) |
| | A) | True |
| | B) | False |
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