ANATOMY

Detailed explanation-1: -Darwin thought of evolution as “descent with modification, ” a process in which species change and give rise to new species over many generations. He proposed that the evolutionary history of life forms a branching tree with many levels, in which all species can be traced back to an ancient common ancestor.

Detailed explanation-2: -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-3: -Darwin and a scientific contemporary of his, Alfred Russel Wallace, proposed that evolution occurs because of a phenomenon called natural selection. In the theory of natural selection, organisms produce more offspring than are able to survive in their environment.

Detailed explanation-4: -The study supports the widely held “universal common ancestor” theory first proposed by Charles Darwin more than 150 years ago.

Detailed explanation-5: -All living organisms are descended from common ancestors. They are modified descendants of creatures who lived in the distant past. This generalization is called evolution. It is one of the greatest generalizations in science.