Write short notes:
Dawin's theory of natural selection

Explanation

i. Darwin's theory of natural selection is based on the concept of survival of the fittest.
ii. Organisms can reproduce prolifically.
iii. Under limited resources, organisms compete with eachother in a life threatening manner for their survival.
iv. According to this theory, only those organisms survive which show modifications for winning the competition. The selected organisms then give rise to new species with their specific set of character.