The concept that "Population tends to increase geometrically while food supply increases arithmetically" was put forward by:

Definition / Explanation: $Saltation$.

Who coined the phrase 'Survival of the Fittest'?

The replica plating experiment was performed to prove which of the following concepts?

$A$ scientist who worked on rats cut their tails up to $21$ successive generations,but at last,he found that the tails remained normal. Which scientist's theory is disapproved by this experiment?

When a change in the gene frequency of population occurs by chance,it is called . . . . . .