Why are macro invertebrates used to analyze water quality?

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

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?