Question

'Feather was used for insulation in cold weather but later, they become useful for flight'. This statement describes:

• A. Genetic variation
• B. Speciation
• C. Evolution by stages
• D. None of the above

Answer 1

The correct option is C Evolution by stages

• The evolutionary process has developed over millions of years.
• Lineages evolved and split and modifications occurred gradually in stages.
• The occurrence of different stages of evolution in a species is not because of a single DNA change.
• Evolution feathers are classic examples to understand the process of evolution by stages. The complex organs are created slowly over generations.

So, the correct answer is option C.