Question

Suppose you exposed various fish species from the minnows’ environment to the alarm substance from minnows. Thinking about natural selection, suggest why some species might respond like minnows, some might increase their activity, and some might show no change.

Short answer

Since the source of the damage can also present a threat to other prey fish, they may be under selection pressure to find an injured fish. Due to the greater likelihood of meeting disabled prey, predators may be attracted to the alert material.

Step-by-step solution

Migration

To survive under better conditions, animals migrate from one place to another. Birds, fish, and other animals use environmental signals to influence migration, a frequent, long-distance shift in position. Distinct species have different strategies and they utilize various natural things to measure migratory distance and time.

Minnows’ environment

Several thousand species of tiny freshwater fish in the Cyprinidae family make up the Minnow family. The majority of minnow species have an elongated body, an open mouth, and large scales. Minnows may be found in almost every freshwater, including in some brackish water habitats.

Natural selection

Depending on their capacity to survive and reproduce in nature, animals are born to live freely.In simple terms, natural selection refers to certain species producing more offspring (who then have more offspring) than others.

As a result, fishes with sufficient defenses may not exhibit any changes since they gain a selective advantage by not wasting energy responding to the alarm chemical.