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1 | |
What is a quadrant? |
| | A) | a randomly determined area |
| | B) | a line |
| | C) | a description that does not use numbers |
| | D) | the interaction among individuals seeking a common resource that is scarce |
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2 | |
The line-intercept method of assessing plant communities measures the distance from randomly chosen points to from a ____ to the nearest plant. |
| | A) | plot |
| | B) | quadrant |
| | C) | transect |
| | D) | allelopathy |
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3 | |
Using a transect of 10 m, an ecologist found 157 individuals of a species of bluebonnet. According to her measurements, what is the density of bluebonnets? |
| | A) | 1570 bluebonnets per meter |
| | B) | 15.7 bluebonnets per meter |
| | C) | 1570 bluebonnets per m2 |
| | D) | 0.06 |
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4 | |
Using a transect of 10 m, an ecologist found 427 individuals of plants, 157 of which were bluebonnets. According to her measurements, what is the relative density of bluebonnets? |
| | A) | 15.7 bluebonnets per meter |
| | B) | 1570 bluebonnets per meter |
| | C) | 0.37 |
| | D) | 2.71 |
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5 | |
Basically, what does the frequency of a plant tell us? |
| | A) | the number of individuals that are in the community |
| | B) | the importance of the species to the community |
| | C) | the amount of area the species covers in the community |
| | D) | the number of times the species is encountered in the community |
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6 | |
What is competition? |
| | A) | The inhibition of a plant's germination or growth by exposure to compounds produced by another plant. |
| | B) | The interaction among individuals seeking a common resource that is scarce. |
| | C) | The amount of area a species covers in a community. |
| | D) | The sum of the relative density, relative coverage, and relative frequency of a given species for a community. |
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7 | |
What type of competition exists between members of the same species? |
| | A) | interspecific |
| | B) | intraspecific |
| | C) | allelopathic |
| | D) | relative importance |
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8 | |
Which of the following would be a resource in which one would expect to see only intraspecific competition? |
| | A) | light |
| | B) | water |
| | C) | mates |
| | D) | nutrient |
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9 | |
What is the inhibition of a plant's germination or growth by exposure to compounds produced by another plant? |
| | A) | intraspecific competition |
| | B) | allelopathy |
| | C) | importance |
| | D) | quadrant |
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10 | |
Using a transect of 100 m, an ecologist found a species of live oak to have a total intercept length of 67 m. What is the coverage of live oaks in the community? |
| | A) | 6700 m2 |
| | B) | 6700 m |
| | C) | 0.67 m |
| | D) | 0.67 |
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