Question

explain how a streamlined, smooth, nearly hairless body is a beneficial adaptation for marine animals.

Explanation:

A streamlined, smooth, nearly hairless body reduces water resistance (drag). This allows marine animals to move more efficiently through water, saving energy for activities like hunting, escaping predators, and migrating.

Answer:

A streamlined, smooth, nearly hairless body reduces water resistance (drag), enabling more efficient movement and energy - saving for marine animals.