According to the non-equilibrium model,
A)communities remain stable when competition is absent.
B)disturbances cause irreversible damage in communities.
C)native species-species contact alters communities in time.
D)communities are constantly changing due to disturbances.

Question

Quizplus · Accepted Answer

The non-equilibrium model suggests that communities are constantly changing due to disturbances, which can prevent the establishment of a stable equilibrium. Therefore, choice D is the best answer. A is incorrect because stable communities can still experience changes and disturbances, leading to shifts in species composition. B is incorrect because disturbances can be beneficial or necessary for maintaining biodiversity and ecosystem function. C is partially correct, as native species-species contact can lead to changes in community dynamics, but this is not the only factor affecting community change.

According to the Non-Equilibrium Model