NEET BIOLOGY

GENETICS AND EVOLUTION

INHERITANCE AND VARIATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
“Survival of the Fittest” describes which theory
A
natural selection
B
gravity
C
heredity
D
string theory
Explanation: 

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.

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: -survival of the fittest, term made famous in the fifth edition (published in 1869) of On the Origin of Species by British naturalist Charles Darwin, which suggested that organisms best adjusted to their environment are the most successful in surviving and reproducing.

Detailed explanation-4: -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-5: -There are four principles at work in evolution-variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.

There is 1 question to complete.