According to Darwin, The organic evolution is due to

Options

(a) Interspecific competition
(b) Competition within closely related species
(c) Reduced feeding efficiency in one species
(d) Intraspecific competition

Correct Answer:

Intraspecific competition

Explanation:

According to Darwin the organic evolution is due to intraspecific competition. Individuals of same species have variation in characteristics. Those characteristics which enable some to survive better in natural conditions (climate,food, physical factors etc.) would outbreed others that are less endowed to survive under such natural conditions. There will survive more and hence are selected by nature. He called it natural selection and implied it as a mechanism of evolution.