<span>Radiochemical dating is the answer!</span>
Answer:
C
Explanation:
Every living thing is made up from cells, as they are the smallest unit of a living thing.
Isotonic since in a hypertonic solution the cell would shrivel up and in a hypotonic solution it would lyse (burst).
They play an important role in the control system by sensing defects that occur during essential processes such as DNA replication or chromosome segregation, and inducing a cell cycle arrest in response until the defects are repaired.
