Explain how and why natural selection has allowed species such as sharks and alligators to remain genetically stable for thousands of years.

Natural selection is a basic mechanism of evolution and works to keep small advantageous genetic mutations. It is the maintenance of a functional asset that can allow a species to compete better in their ecosystem. The sharks have adapted to their environments and the traits that are most fit have survived. This is the same for the alligators as well. Natural variation has determined how these specific animals would change in the future and how their environments might affect their populations.

i dont know it at allnow im just getting points at this pint