Explain why succession allows an ecosystem to recover after a primary disturbance.

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

In which of the following relationships is one organism always benefited while the other organism is always harmed