Question

At which level is natural selection operated to evolve the desired traits?

• A. Individual level
• B. Population level
• C. Community level
• D. Ecosystem level

Hint:

Evolution = change in allele frequency across populations, not individuals.

Answer 1

The Correct Option is B

Step 1: Concept of natural selection.
Natural selection acts on variations within populations and results in differential survival and reproduction.
Step 2: Analyzing options.
(A) Individual level: Incorrect — Selection acts on individuals, but evolution is seen at the population level.
(B) Population level: Correct — Evolution occurs through changes in allele frequencies across generations in a population.
(C) Community level: Incorrect — Communities involve multiple species, not the unit of evolution.
(D) Ecosystem level: Incorrect — Too broad; natural selection doesn’t directly act at this level.
Step 3: Conclusion.
Natural selection operates at the population level to evolve traits.