before the application of dna sequencing to fossils, which species concept was most useful for distinguishing human fossils?

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

the answer is c on e2020, bud.