I would say D. a virus <span>is potentially a pathogen.</span>
Spinal cord terms name the part of the nervous system
Fish
It comes down to genes it can be passed down from family
The new trait appears in a group of previously isolated people is an
example of genetic drift.
<h3>What is Genetic drift?</h3>
This is defined as the random fluctuations in the frequencies of alleles
from generation to generation due to occurring events which makes the
trait to be present or disappear.
The new trait appearing as a result of events such as migration helps to
infer that it is genetic drift.
Read more about Genetic drift here brainly.com/question/1027688
Speciation, the evolutionary process by which new species are formed, is clearly responsible for the ultimate generation of species diversity over geologic time.