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.