NEET BIOLOGY

Detailed explanation-1: -"Survival of the fittest” is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection. The biological concept of fitness is defined as reproductive success.

Detailed explanation-2: -"Survival of the fittest” is a popular term that refers to the process of natural selection, a mechanism that drives evolutionary change. Natural selection works by giving individuals who are better adapted to a given set of environmental conditions an advantage over those that are not as well adapted.

Detailed explanation-3: -Social Darwinists believe in “survival of the fittest”-the idea that certain people become powerful in society because they are innately better. Social Darwinism has been used to justify imperialism, racism, eugenics and social inequality at various times over the past century and a half.

Detailed explanation-4: -phrase. You can use the survival of the fittest to refer to a situation in which only the strongest people or things continue to live or be successful, while the others die or fail. See full dictionary entry for survival.