Which description of a discovery best shows how cell theory evolved as new evidence and information was uncovered? A.
Scientists developed ideas about cells individually and then argued about whose idea was correct.
B.
Scientists discovered a way to grow cells on artificial growth materials outside of an organism.
C.
Scientists developed better microscopes and were able to see much smaller cells in more detail.
D.
Scientists discovered cells first in plants and then in animals and concluded that cells are the building blocks of life.

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?