Sloths have less muscle than other mammals their size in order to .

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

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