Question

During breeding season, the sight of a red belly on a male stickleback fish will trigger an antagonistic response in other males. This is an example of

Answer 1

fixed action pattern

Step-by-step explanation:

This is an example of a fixed action pattern. This is an ethological term that describes an instinctive behavior sequence that is highly stereotyped and species-characteristic due to it happening in the same manner countless times in a predictable cycle. These fixed action patterns are innate mechanisms triggered by a specific stimulus or releaser, which in this scenario is the sight of a red belly.