Question

Define ‘evolution’. Describe Darwin’s theory of evolution.

Answer 1

Evolution : Evolution is the process of cumulative change in the heritable characteristics of a population.

Darwin's Theory :
All species of organisms arise and develop through natural selection of small, inherited variations that increase the individual's ability to complete, survive and reproduce.

Answer 2

Evolution: evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.

Darwin's theory of evolution: as random genetic mutations occur within an organism's genetic code, the beneficial mutations are preserved because they aid survival. ( this is done through natural selection.) These beneficial mutations are passed on to the next generation. Over time, beneficial mutations accumulate and the result is an entirely different organism