which environmental factor could lead to a decrease in genetic variation in a population of tuna? an…

which environmental factor could lead to a decrease in genetic variation in a population of tuna? an increase in food availability an increase in pollution a decrease in tuna fishing a decrease in tuna predators

which environmental factor could lead to a decrease in genetic variation in a population of tuna? an increase in food availability an increase in pollution a decrease in tuna fishing a decrease in tuna predators

Answer

Answer:

B. an increase in pollution

Brief Explanation:

Pollution can cause high - mortality events and selective pressures, reducing genetic variation in a tuna population. More food, less fishing, and fewer predators are likely to increase or maintain genetic variation rather than decrease it.