Its B clearing and farming. Because if you think of it when someone clears trees and bushes they most likely won't come back.
Thomas huxley = his findings made the theory of evolutions became widely accepted
Ernst Mayr = the one who proposed Biological species concept
Herbert spencer = found similarities between societies within humans and animal
Stephen Gould = the one who contributed to the study of fossils
hope this helps
Passive transport is the movement of materials through the cell membrane without the use of energy.
