Question

A small population of red birds lived in a habitat that did not undergo changes for a long period of time. The birds were geographically isolated from other red birds. Predict the effects of natural selection on this population of birds.

A - The red birds would develop traits that would help them to be better suited.
B - Red birds would become extinct due to no change in the environment.
C - The population of red birds would have a decrease in genetic variation.
D - Only specific alleles of traits would increase in the red birds.

Answer 1

If I am correct, it is C - The population of red birds would have a decrease in genetic variation.

Step-by-step explanation:

Since the birds have lived the same lifestyle for years, there would be a lack of diversity between the birds. Thus, they experience the same thing over and over again, which causes less genetic variation. Hope this helps!