Question

Natural selection is an evolutionary mechanism by which:.

Answer 1

The correct answer would be option B

Natural Selection is a phenomenon in which the the traits that is advantageous for the population is common in a population.

These changes evolve over a period of time. The organisms having some change in the characters due to mutation survives and the organism lacking these features die.

These characters are then transferred from one generation to another and becomes common in a population.

Answer 2

The correct answer is B. Natural selection occurs through generations and is in which organisms best suited to their environment survive.