What is a group of organisms that can only reproduce with other members of their group?

A species.

Explanation:

A species is a group of organisms that only reproduces with other members of their group.

A species can be said to be organisms that produce offspring that are fertile, with members of their own group.

Organisms of the same species  tend to also have more characteristics  in common among themselves than with members of a different species.

species

Explanation:

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

its temperature is increasing. this causes molecular vibrations to increase.