Original Project
Interdependence in Ecosystems
Item IE074002: Plants compete for water, space, and light when those resources are limited.
Which of the following statements about competition between plants is TRUE?
- Plants compete for water when it is limited, but they do not compete for space when it is limited.
- Plants compete for water and space when they are limited, but they do not compete for light when it is limited.
- Plants compete for water, space, and light when they are limited.
- Plants do not compete for any resource, even when it is limited.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 3295 |
6–8 n = 792 |
9–12 n = 2490 |
Male n = 1544 |
Female n = 1675 |
English n = 2934 |
Other n = 255 |
||
| A. | Plants compete for water when it is limited, but they do not compete for space when it is limited. | 5% | 7% | 4% | 7% | 4% | 5% | 3% |
| B. | Plants compete for water and space when they are limited, but they do not compete for light when it is limited. | 12% | 10% | 12% | 11% | 12% | 11% | 16% |
| C. | Plants compete for water, space, and light when they are limited. | 62% | 54% | 64% | 62% | 62% | 63% | 55% |
| D. | Plants do not compete for any resource, even when it is limited. | 21% | 29% | 19% | 21% | 22% | 21% | 27% |