Which of the following is a type of nekton? shark zooplankton bacteria sea star

shark

Nekton is term which defines pelagic animals that can swim independently in the water currents. It includes three phylla of animals.

1. Vertebrates: These animals exhibit bones and cartilages. This includes species of bony and cartilaginous fishes such as sharks, reptiles like turtles, snakes and crocodiles.

2. Mollusks: This includes squids, octopus and scallops.

3. Crustaceans: This includes shrimps, crabs, and lobsters.

On the basis of above information, shark is the only nekton among the given examples.

a symbiotic relationship with the mitochondria