Which of the following staements are false? A a disturbance in an ecosystem is an even that changes the availabity of resources in that ecosystem B disturbances are by definition harmful undesirable for ecosystems C disturbances can be natural or man made D disturbances can cause changes in the organisms in an ecosystem

The answer is; B

Not all disturbances to ecosystems are undesirable. The fact, however, is that disturbance does change the structure of the ecosystem including impacting the biodiversity. The disturbance may benefit some species while it may be disadvantageous to some species. An example is that while a volcanic eruption might devastate a whole ecosystem, the recovered ecosystem after time may have an increased biodiversity than before.