Briefly explain Darwin so theory of evolution
Answers
An English scientist Charles Darwin proposed an idea regarding the evolution of life known as the Theory of natural selection or Darwinism.
According to this theory, organisms reproduce at a faster rate resulting in a fierce competition for food and space.This creates a struggle for existence in which every individual is fighting for survival
Darwin’s theory of evolution:
(a) Within any population, there is natural variation. Some individuals have more favourable variations than the others.
(b) Even though all the species produce a large number of offspring, populations remain fairly constant naturally.
(c) This is due to the struggle between members of the same species and different species for food, space and mates.
(d) Struggle for survival within populations eliminates unfit individuals. The fit individuals possessing favourable variations survive and reproduce. This is
called natural selection.
(e) Individuals having favourable variations pass on these variations to their progeny from generation to generation.
(f) These variations when accumulated over a long period of time lead to the origin of a new species.