Which of the following occurences would most likely result in an increase in allele frequencies in a population?

O A flock of ducks joined another group living near a lake.
O A school of trout that were separated by a dam.
O A third of the baby sea turtles that hatch are eaten by predators.
O A disease killed off 3/4 of the members of a herd of wildebeest.

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a

explanation:

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.