Question 22

(Multiple Choice)

The following statements about community structure and interactions are correct,with the exception of which one?


A)The trophic cascade model suggests that the lower trophic levels influence/control the higher trophic levels.
B)High-diversity communities are often more resilient to invasive species than low-diversity communities.
C)Communities show variation in the top-down and bottom-down community control.
D)The dynamic stability hypothesis suggests that long food chains are less stable than low food chains.
E)An organism that influences a community by changing its physical environment is referred to as an ecosystem engineer.

Answer