Which conditions are necessary for natural selection?

More organisms are born than can survive.

Organisms vary in their characteristics, even within a species.

Variation is inherited.

Differences in reproduction and survival are due to variation among organisms.

Explanation:

chinese civil war took place over a long period of time between 1927 and 1950. the war was interrupted when japan invaded china in 1936 and by world war ii. the war was fought between the nationalist government of china, also called the kuomintang (kmt), and the communist party of china (cpc).