NEET BIOLOGY

Detailed explanation-1: -Definition. Evolutionary change is the heritable change in populations and species over time, due to mechanisms such as natural selection, random genetic drift, and sexual selection.

Detailed explanation-2: -Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species.

Detailed explanation-3: -Evolution is the process by which species adapt over time in response to their changing environment.

Detailed explanation-4: -Evolution is the process by which populations of organisms change over generations. Genetic variations underlie these changes.

Detailed explanation-5: -Changes can be small, for example, a small change in body size or a change in the color of a species’ fur. Over many generations evolutionary change can result in the evolution of new structures such as wings, or new functions such as photosynthesis.