Natural selection causes changes in(1 point)
Responses
individuals.
individuals.
genotypes.
genotypes.
populations.
populations.
phenotypes.
populations.
Natural selection causes changes in populations.
The correct answer is "phenotypes."
Explanation:
Natural selection is the process through which certain traits or characteristics become more or less common in a population over generations. It operates on individuals within a population, but its effects are seen at the level of populations. Phenotypes refer to the observable traits or characteristics of an organism, such as its anatomy, physiology, or behavior.
During natural selection, individuals with advantageous phenotypes that help them better survive and reproduce are more likely to pass on their genes to the next generation. This gradually leads to changes in the frequencies of specific traits within a population. Therefore, natural selection primarily acts upon phenotypes, resulting in adaptations that increase an organism's fitness in its specific environment.