Explain about the importance of variation ?

Explanation

(i) Variations make some indiduals better fitted in the struggle for existence.
(ii) They help the individuals to adapt themselves to the changing environment.
(iii) It provides the genetic matrial for natural selection.
(iv) Variations allow breeders to improve betteryield, quicker growth, increased resistance cand lesser input.
(v) They constitute the raw materials for evolution.