AP BIOLOGY

Detailed explanation-1: -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-2: -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-3: -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-4: -Charles Darwin was a British naturalist who proposed the theory of biological evolution by natural selection. Darwin defined evolution as “descent with modification, ” the idea that species change over time, give rise to new species, and share a common ancestor.

Detailed explanation-5: -Darwin introduced the phrase in a few places in his works from 5th edition of Origin in 1869. However, he never abandoned the term ‘natural selection’ and only saw ‘survival of the fittest’ as a synonym or auxiliary phrase to help make his meaning clear to his readers.