Question

The "theory of natural selection" of Darwin to explain organic evolution was based on

• A. Modification in organs through use and disuse
• B. Probability of reproduction, struggle for existence and survival of the fittest
• C. Inheritance of acquired characters
• D. Appearance of sudden large variations, the inheritance and survival of those having these variations

Answer 1

The correct option is D Appearance of sudden large variations, the inheritance and survival of those having these variations

The "Theory of Natural selection" of Darwin to explain organic evolution was based on appearance of sudden large variations, the inheritance and survival of those having these variations.

Darwin's Theory of Evolution by Natural Selection. More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.