Feathers either play a role, or may have played a role, in . Feathers either play a role, or may have played a role, in . courtship extended hops flight gliding all of these

flying

Explanation:

plato users

given bodies of water

pacific / arctic / indian / southern

[ a ] the caribbean sea

[ b ] the northern ocean

[ c ] the atlantic ocean

[ d ] the barents sea

with this being the given answers