Question

Darwin's theory of natural selection to explain organic evolution was based on?

• A. Inheritance of acquired character
• B. Appearance of sudden large inheritable variation
• C. Modification of organs through use and disuse
• D. Prodigality of reproduction, struggle for existence and survival of the fittest

Answer 1

The correct option is D Prodigality of reproduction, struggle for existence and survival of the fittest

Darwin's theory of natural selection explains organic evolution as follows :

1. The number of organisms are produced more than that can survive because of limited resources.

2. Organisms struggle for the necessities of life; there is competition for resources.

3. Individuals within a population vary in their traits; some of these traits are heritable.

4. Some variants are better adapted to survive and reproduce under local conditions than others.

5. Better-adapted individuals are more likely to survive and reproduce, thereby passing on copies of their genes to the next generation.

6. Species whose individuals are best adapted survive while others become extinct.

So, the correct option is 'Prodigality of reproduction, struggle for existence and survival of fittest'.