which explanation is most accurate about the survival and reproduction of a population?

small populations have extremely high reproductive rates
if there are a wide variety of traits within a population then it is more likely to have some members survive and reproduce
population size and reproduction do not have anything to do with one another
the more similar a population is the better able it is to withstand any environmental changes

If there are a wide variety of traits within a population then it is more likely to have some members survive and reproduce.

The explanation that is most accurate about the survival and reproduction of a population is: "If there are a wide variety of traits within a population, then it is more likely to have some members survive and reproduce." This is based on the concept of genetic diversity, which increases the odds of some individuals having traits that are better suited to survive and reproduce in a changing environment. Genetic diversity provides a greater pool of potential adaptations for the population to draw upon, increasing its resilience to environmental changes.