Question
Biology Question on evolution
The unit of natural selection is
A
A genus
B
A population
C
An individual
D
A species
Answer
An individual
Explanation
Solution
Natural selection is a process by which an organism gets adapted to its environment by making selective changes in its genetic constitution. The unit of natural selection is an individual since genes work at an individual level.
Natural selection occurs to maintain the survival of a species by making favourable changes in its genes that helps it cope up with the changing environment. These changes are heritable and are passed on to the subsequent generations eventually leading to evolution. In the process of natural selection, organisms with more favourable changes will only survive and reproduce.