The Adaptations of Sea Snakes

How have sea snakes adapted their bodies for high-performance swimming?

• They have developed fins on their sides.

• They have flattened their bodies vertically.

• They have grown larger heads for better steering.

• They have developed stronger, more muscular tails.

What is a key adaptation of a sea snake's lung?

• It is located only in the head for quick air exchange.

• It is divided into multiple small sacs for increased oxygen storage.

• It extends almost the full length of their body.

• It is filled with a special gas for buoyancy.

Besides breathing air, how do sea snakes supplement their oxygen supply underwater?

• Through specialized gills.

• By absorbing oxygen through their skin.

• By consuming oxygen-rich marine plants.

• Through a symbiotic relationship with algae.

How long can sea snakes typically remain underwater on a single breath?

• Up to 30 minutes.

• Up to one hour.

• Up to two hours.

• Up to four hours.