Some axons are coated with an insulating fatty sheath during the process of which improves the efficiency of message transfer.

Myelination

Explanation:

Myelination is a term in anatomy that is defined as the change  of certain nerve cells whereby a layer of myelin forms around the axons, allowing nerve impulses to travel faster

it is process of forming a myelin sheath around a nerve to allow nerve impulses to move more quickly.

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

it depends on how much it could carry.