Question

what factors affect natural selection? select three options.
□ isolation
□ variation
□ overpopulation
□ adaptation
done

Explanation:

To determine the factors affecting natural selection, we analyze each option:

• Variation: Genetic variation provides the raw material for natural selection, as different traits exist within a population.
• Overpopulation: When a population overproduces offspring, there is competition for resources, leading to differential survival and reproduction (natural selection).
• Adaptation: Traits that are adaptations (favorable traits) increase an organism’s fitness, and natural selection favors these traits, leading to their increased frequency over time.
• Isolation is more related to speciation (like geographic isolation leading to allopatric speciation) rather than a direct factor of natural selection itself.

So the three factors affecting natural selection are variation, overpopulation, and adaptation.

Answer:

B. variation, C. overpopulation, D. adaptation