Answer:
C. The evolution of many species from a single ancestor over a long period of time
A geologist studies rocks and such
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.
Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient , using energy released during respiration .
It is because it may happen more often than others and can do more damage quicker.