Please help this is due today List and explain the four factors of Darwin’s Theory of Natural Selection.

Natural selection occurs if four conditions are met: reproduction, heredity, variation in physical characteristics and variation in number of offspring per individual.

Explanation:

answer; i believe the correct answer is (anemia);

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.