WORLD HISTORY

Detailed explanation-1: -Social Darwinism is the study and implementation of various theories and societal practices that purport to apply biological concepts of natural selection and survival of the fittest to sociology, economics and politics, and which were largely defined by scholars in Western Europe and North America in the 1870s.

Detailed explanation-2: -The social Darwinists-notably Spencer and Walter Bagehot in England and William Graham Sumner in the United States-believed that the process of natural selection acting on variations in the population would result in the survival of the best competitors and in continuing improvement in the population.

Detailed explanation-3: -Herbert Spencer is famous for his doctrine of social Darwinism, which asserted that the principles of evolution, including natural selection, apply to human societies, social classes, and individuals as well as to biological species developing over geologic time.

Detailed explanation-4: -Natural selection is sometimes summed up as “survival of the fittest” because the “fittest” organisms-those most suited to their environment-are the ones that reproduce most successfully, and are most likely to pass on their traits to the next generation.

Detailed explanation-5: -"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-6: -Answer and Explanation: The answer choice that best describes the theory of natural selection is D) Some individuals have genes that increase their chances for survival and reproduction.