C. The precipitation cannot meet the growing demands for water
Answer:
Reinforcement is the process by which natural selection increases reproductive isolation. Reinforcement can occur as follows: When two populations which have been kept apart, come back into contact, the reproductive isolation between them might be complete or incomplete. If it is complete, speciation has occurred.
Explanation:
<3
It is Harmful because if the organism is used to their environment and something changes your body is not going to function right