Why is natural selection, as a scientific model, applied at the population level and NOT at the individual level?

Individuals cannot change inheritable traits.

Pressures apply only to groups of individuals and not to individuals themselves.

Significant traits are shared by all individuals in a population.

Mutations occur so rarely that they are detectable only at the population level.

Why is natural selection, as a scientific model, applied at the population level and NOT at the individual level?

Mutations occur so rarely that they are detectable only at the population level

Explanation:

Mutation entails the sudden change of a gene, it occurs rarely

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

the correct answer should be false

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