NEET BIOLOGY

Detailed explanation-1: -The theory of evolution is a shortened form of the term “theory of evolution by natural selection, ” which was proposed by Charles Darwin and Alfred Russel Wallace in the nineteenth century.

Detailed explanation-2: -Charles Darwin is commonly cited as the person who “discovered” evolution. But, the historical record shows that roughly seventy different individuals published work on the topic of evolution between 1748 and 1859, the year that Darwin published On the Origin of Species.

Detailed explanation-3: -The Principles of Biology by Herbert Spencer (1864) looked at biology in terms of themes, such as Function, Adaptation and Variation. In this book Spencer introduced the expression ‘survival of the fittest’, in the sense of ‘the most appropriate to its environment’.

Detailed explanation-4: -The survival of the fittest theory was put forward by Charles Darwin and he suggested that the organisms best adapted to the environment are more likely to survive and reproduce. Natural selection: It is a key feature of evolution that was proposed by Charles Darwin.

Detailed explanation-5: -Darwin’s greatest contribution to science is that he completed the Copernican Revolution by drawing out for biology the notion of nature as a system of matter in motion governed by natural laws. With Darwin’s discovery of natural selection, the origin and adaptations of organisms were brought into the realm of science.