Question

why variation is necessary for organic evolution?????​

Answer 1

Answer:

Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. ... Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.

Answer 2

Answer :-

Variation is a n evolutionary process which increases the ease of survival of a species by adding new qualities and removing old primitive ones. This occurs due to change in the gene structure of an organism due to environmental factors,surroundings, needs for survival etc etc.

Variation is found in sexually reproducing organisms.

Some examples are...

1. Long neck of giraffe helps him to get leaves of tall tress too.
2. palm with fingers of humans and other animals increases holding power. etc

hope it helps......