How many amino acids must be obtained in the diet because they cannot be made by the body? 2
5
10
20

the cell cycle is the final answer! : )

that scientist would be robert hooke

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

not too sure but maybe in the hot springs.