An increase in food and a decrease in predators would most likely _ genetic variation in a population

An increase in food and a decrease in predators would most likely increase genetic variation in a population

Explanation:

An increase in food and a decrease in predators would most likely increase genetic variation in a population

An increase in available food in an ecosystem is one of the environmental factors attributed to an increase in genetic variation of a particular species. A decrease in the number of predators has been observed to bring about the same effect.

An increase in food and a decrease in predators would most likely  

increase genetic variation in a population.