Answer: A. Environmental drivers plus genetic variation in the population result in natural selection
Explanation: over geological time environmental conditions change. Organisms do not survive in one environmental niche with traits adapted to a possible future change that might suit those traits. Adaptation is not a matter of choice: adapt if possible or go extinct.
There is a (badly named) concept called pre-adaptation, which is that variations in some existing trait render adaptation to a different environment more likely.
Answer:
a big one could be chain effect causing more extinct species
Explanation:
Answer:
It would be a internal illness because his body is responding to an illness.
Answer: The rate of an enzyme might change as pH changes
Explanation: