4. Are cells still active while you are asleep? Why?

cells are still activee while sleep because example your hair grows every night your cells create that. idk how to explain but they still active

Explanation:

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

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.