Answer:
<em>e. speciation</em>
Explanation:
The definition of speciation is: the evolutionary process by which populations evolve to become distinct species.
In this scenario, the bears that were once of the same species evolved in order to adapt to their environment. Once they evolved, they could no longer produce with each other, as they are now different species.
Natural gas made due to pressure and under buried layers of rock over millions of years ago
Sea level rises when it rains or when snow is melting. Sometimes more water forms in new areas and makes it into an add on to the ocean which Changes the shape.
Answer:
It is a laboratory method used to separate mixtures of DNA, RNA, or proteins according to molecular size.