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1 | |
Which of the following is not a part of an organism's environment? |
| | A) | the flow of energy necessary to maintain the organism |
| | B) | climate |
| | C) | all the plants and animals that the organism interacts with during its lifetime |
| | D) | temperature |
| | E) | all of the above are part of the organism's environment |
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2 | |
A trout cannot live in a slow, warm stream because the oxygen concentration in the water is too low. In this case, the oxygen concentration is |
| | A) | a range of tolerance. |
| | B) | a niche. |
| | C) | a limiting factor. |
| | D) | a delineating factor. |
| | E) | none of the above. |
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3 | |
The functional role an organism has in its surroundings is called the organism's habitat. |
| | A) | True |
| | B) | False |
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4 | |
In ecology, the process of more successful individuals surviving and reproducing larger numbers of offspring than unsuccessful individuals can reproduce is called |
| | A) | natural selection. |
| | B) | predation. |
| | C) | mutualism. |
| | D) | speciation. |
| | E) | none of the above. |
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5 | |
Ecologists call the phenomenon "speciation" when two populations of a single species become separated for a long period of time and, as a result, two species eventually form as these two subgroups respond to different ecological pressures. |
| | A) | True |
| | B) | False |
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6 | |
Which of the following is not an example of an ecological interaction between organisms? |
| | A) | predation |
| | B) | competition |
| | C) | mutualism |
| | D) | commensalism |
| | E) | all of the above are examples |
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7 | |
In a grassland, when tall grasses shade out short, shade-intolerant species, ecologists call this interaction |
| | A) | parasitism. |
| | B) | predation. |
| | C) | habitat destruction. |
| | D) | competition. |
| | E) | commensalism. |
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8 | |
Which of the following is not an example of a symbiotic relationship between organisms? |
| | A) | parasitism |
| | B) | competition |
| | C) | commensalism |
| | D) | mutualism |
| | E) | all of the above are examples |
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9 | |
Commensalism occurs when both species that interact are benefited and the relationship is obligatory. |
| | A) | True |
| | B) | False |
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10 | |
Many plants have nitrogen-fixing bacteria that live in their root nodules. This is an example of |
| | A) | commensalism. |
| | B) | mutualism. |
| | C) | competition. |
| | D) | ecological communities. |
| | E) | none of the above. |
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11 | |
Which of the following is not an example of a major role an organism can have in an ecosystem? |
| | A) | producer |
| | B) | consumer |
| | C) | decomposer |
| | D) | trophic supervisor |
| | E) | The major roles in an ecosystem are: Producers, consumers, and decomposers. |
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12 | |
Which term names the trophic level in which energy from the sun is chemically trapped? |
| | A) | carnivore |
| | B) | herbivore |
| | C) | producer |
| | D) | decomposer |
| | E) | none of the above |
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13 | |
As energy passes through the trophic levels in a food chain, the amount of energy in each higher trophic level increases due to the second law of thermodynamics. |
| | A) | True |
| | B) | False |
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14 | |
Which of the following would be part of the carbon cycle? |
| | A) | animal respiration |
| | B) | plant respiration |
| | C) | production of sugars in plants |
| | D) | production of proteins in animals |
| | E) | all of the above |
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2002 McGraw-Hill Higher Education