. Theory of Natural selection, proposed by Darwin to explain organic evolutions was based on:


A.         Modification of organ through use & disease

B.         Prodigality in reproduction, struggle for existence and survival of the fittest

C.         Inheritance of acquired character

D.         Appearance of sudden large variation inheritance and survival of those lead to these variation

Best Answer

B.         Due to suitability of environment there is an increase in population. This leads to struggle for existence resulting in survival of the fittest and origin of species.

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