The correct answer would be - mushroom, and new mutations.
Explanation:
John hawks is an physical anthropologist who is professor of anthropology at Wisconsin-Madison. He and his other colleagues has done work on the bones and genome of early hominids.
According to the John hawks and other anthropologist colleagues believes that the evolution is increase relatively with the population increase continuously. In this process the new mutations are introduced.
Thus, the correct answer is - mushroom, and new mutation.
Physical anthropologist John Hawks and colleagues suggest that evolution is speeding up as population sizes are being continued to mushroom and new mutations which are endorsed. Human population increased rapidly. The increase began those days of upper Paleolithic which is documented by archaeological evidence.
Well all cells in a multicellular organism have the same exact DNA (except for sex cells). But what makes each type of cell different physically and functionally is the genes that are expressed in those cells.So for like example a different section of the DNA molecule is expressed in a nerve cell than a skin cell.
The design of an experiment is synergistically related to the method of difference. Both are required in order to test a hypothesis and deliver a conclusion or evidence.