Answer:
D) habitat isolation
Explanation:
Based on the information provided within the question it can be said that the main factor that keeps the two populations separate would be habitat isolation. This occurs when the different unique characteristics or preferences of the population's habitats prevent them from mating with those with different habitat preferences, thus maintaining them separate.
Favorable
Traits that enhance survivability and reproduction, to be more specific.<span />
The option that u have selected is perfectly right.
Wall lizard are not seen because blood becomes cold inside the body.