Final answer:
Sexual reproduction can spread adaptations in a population by producing offspring with diverse phenotypes.
Step-by-step explanation:
Sexual reproduction can spread adaptations in a population because it results in offspring with diverse phenotypes. This diversity allows for a greater chance of survival in a changing environment. For example, if a population of animals is facing a new predator, some individuals may have traits that make them better able to escape or defend against the predator. These individuals will have a higher likelihood of survival and passing on their advantageous traits to the next generation through sexual reproduction.