Question

The idea of ‘Survival of Fittest’ is given by
(a)Mendel
(b)Spencer
(c)Lamarck
(d)De Vries

Answer 1

It was an English rationalist, scholar, anthropologist, and humanist popular for his hypothesis of social Darwinism whereby predominant actual power shapes history. He built up a comprehensive origination of advancement due to the reformist improvement of the actual world, biological creatures, the human brain, and human culture and social orders.

Complete answer:
In the 1800s, after Darwin first published his book, 'On the Origin of Species', a British economist Spencer used the term "survival of the fittest" in reference to Darwin's idea of survival as he compared Darwin's theory to an economic principle in one among his books. This understanding of endurance got on and Darwin himself even utilized the expression during a later version of 'On the Origin of Species'.

Additional Information: Darwin's hypothesis of advancement by endurance involved three significant components: variation, reproduction, and heritability. Variations within the physical features of organisms that tend to profit a private (or a species) within the struggle for existence are preserved and passed on (or selected) because the individuals (or species) that have them will as a rule persevere. The achievement or disappointment of a given variety isn't known when it arises; it's known just reflectively, after living beings that have it either develop and develop and pass it to their own offspring or neglect to develop and reproduce.
So, the correct answer is ‘Spencer’.

Note: The logic of survival of the fittest and natural selection was thought to be transferable to humanity.
As it related to the idea of survival of the fittest, eugenics was isolated into positive and negative structures, with positive eugenics effectively promising great reproducing and negative eugenics forestalling awful rearing.