Answer:
Geographic isolation
Explanation:
Geographic isolation occurs when a population is split by geographic factors, such as the flood mentioned. They can become separate species over time and will no longer be able to produce viable offspring. Hope it helps :)
Mice that are injected with the living R strain survive.
B ) the oceanic and continental crust only
Answer:
Bro..The enzymes are encoded and used by viruses that use reverse transcription as a step in the process of replication...I know that much...
<span>they affect the rate of cycling</span>
