What are variations? Explain with a suitable example.

Explanation

1. Differeences in characters within very closely re4lated groups of organisms are referred to as variations
2. Variations develop during sexual reproduction in organisms.
3. errors in DNA copying leads to variations in off springs.
4. Variations can be explained by taking population of beetles as an example.
5. these beetles will feed on the green leaves of busheds and reproduce sexually.
6. this sexual reproduction generates variation in colour in their population.
7. Red coloured beetle become the prey for crows because of their colour. Hence, their population rapidly decreased.
8. Green coloured beetles produced as a result of variation, were not seeb by the crows. Hence they grow in their population .
9. So the variation of colur of beetle green gae a survival advantage to green beetles than red beetles. the nature selected the green colour which fits to live on the earth.