9. Disturbance is an important component of succession because it (A) Removes keystone species. (B) Changes the biome from one kind to another. (C) Introduces invasive species. (D) Is associated with humans. (E) Tends to promote earlier successional stages.

8. Dispersion patterns tend to be highly dependent on the spatial scale of the observer. For example, football players lined up on the scrimmage line are clumped at the scale of 100 yards but uniformly dispersed at the scale of a meter. An example of animals that are likely to be clumped at a large scale but uniformly distributed at a small scale is (A) Buffalo grazing on a prairie. (B) Bluegills swimming in a northern lake. (C) Ant nests in an abandoned field. (D) Red-winged blackbirds in a cattail marsh. (E) All of the above.

9. Disturbance is an important component of succession because it (A) Removes keystone species. (B) Changes the biome from one kind to another. (C) Introduces invasive species. (D) Is associated with humans. (E) Tends to promote earlier successional stages.

其他試題

9. Disturbance is an important component of succession because it
(A) Removes keystone species.
(B) Changes the biome from one kind to another.
(C) Introduces invasive species.
(D) Is associated with humans.
(E) Tends to promote earlier successional stages.