In population genetics, gene flow (also known as gene migration or allele flow) is the transfer of genetic variation from one population to another. ... In some cases migration may also result in the addition of novel genetic variants to the gene pool of a species or population.
When an object turns around it’s internal axis (the earth turns on its axis) its a rotation. When an object turns around an external object (earth going around the sun) is a revolution.
I think the most accepted Theory to make up living things is the cell theory.
C
in the first paragraph a fact is challenged
and the second one provides an example
