Science questions I need help! 2 quick questions

Dan made the table shown to describe two different relationships between animals. organism interactions relationship a relationship b one organism lives inside the organism it feeds off no organism is harmed which of the following statements is most likely correct?

The image shows a group of fish. the type of social behavior shown in the image is called

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.