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: -the phrase “survival of the fittest” as an exact equivalent of. “natural selection.” He said: The survival of the fittest which I have here sought to, express in. mechanical terms is that which Mr. Darwin has called “natural selec-tion, ” or the preservation of favored races in the struggle for life.

Detailed explanation-4: -Darwin did not consider the process of evolution as the survival of the fittest; he regarded it as survival of the fitter, because the “struggle for existence” (a term he took from English economist and demographer Thomas Malthus) is relative and thus not absolute.

Detailed explanation-5: -The Complicated Legacy of Herbert Spencer, the Man Who Coined ‘Survival of the Fittest’