How would the presence of an egg eating predator affect the probability a fish successfully reproduce

decrease

Explanation:

The egg eating predators are species like birds, frogs, fishes, snakes and other aquatic animals that feed on the eggs release by the females for spawning.

Fishes use spawning behavior to reproduce. It is a process of releasing the eggs and sperms in to the water for reproduction by the fish.

But other species called as the egg eating predators feeds on these eggs and therefore only some of the eggs are able to reproduce and others cannot.

Thus the presence of egg eating predators in the water would reduce the probability of the fish to reproduce successfully.

answer; polycythemia is the correct answer;

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms