This is a change in the genetic makeup of a population or species over time.

Evolution

Explanation:

Evolution is usually defined as the change that occurs in the genetic characteristics of a particular species over a long period of time. This changes occurs when a particular species adopts to get fit into another environment, and in doing this, the characteristics of that species gets evolved, as a result of which there occurs certain changes or modification in their genes. This is commonly known as the theory of natural selection.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: