NEET BIOLOGY

Detailed explanation-1: -Evolution is the process by which species adapt over time in response to their changing environment.

Detailed explanation-2: -Evolution is a gradual and continuing process of change that occurs over a period of time, due to slight variations in genetic compositions as well as changes in environment, leading to formation of new species.

Detailed explanation-3: -Charles Darwin understood that evolution was a slow and gradual process. By gradual, Darwin did not mean “perfectly smooth, ” but rather, “stepwise, ” with a species evolving and accumulating small variations over long periods of time until a new species was born.

Detailed explanation-4: -Charles Darwin’s 1859 theory of evolution by natural selection put forward the idea that evolutionary change or divergence accumulates steadily and slowly, in small steps, as one species succeeds the previous one in the struggle for existence.

Detailed explanation-5: -Natural selection is a slow and gradual process which leads to the changes in the species or the formation of new species. Some individuals with certain traits have higher survival and reproductive rate than others.