What is the importance of variation?

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Detailed Solution

Variation is important because it helps species adapt to changing environments and ensures survival over time.

Variation means the differences found among individuals of the same species. These differences may be in size, color, shape, resistance to diseases, or ability to survive in different conditions. Without variation, all individuals would be identical and a single harmful change could wipe out the entire species. Variation gives some members of a species a better chance to survive and reproduce.

Importance of variation

Helps organisms survive in changing environments.
Increases chances of evolution.
Protects species from complete extinction.
Gives rise to new traits and characteristics.

For example, in a population of insects, some may survive pesticide use due to variation. These insects reproduce and ensure the survival of the species. Thus, variation is the foundation of natural selection and evolution.

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