Answer:
Gene flow
Explanation:
The gene flow refers to the migration, movement and transfer of genetic material between groups of different regions. In other words, this flow can happen with the migration of animals and with the transport of the pollen of the plants, which allows the DNA of an organism in one region, be transported to another and produce offspring there with the same genetic material.
In summary, we can say that the simple migration or movement of animals is important to increase the gene pool and is an example of gene flow.
