Fish use gills, but whales and dolphins are mammals. They need to surface to take a breath of air periodically.
They have mouths and lungs. They breath oxygen from the air.
no they do not have gills they have lungs and they are mammals both these creature have blowholes on the top of their head and they also have mouth
Dolphins have gills so they can breath when they are under water
Gills would be respiration
Whales are mammals !
One thing that fish have that whales do not have are gills. Fish need gills to breathe, but whales have a blowhole because they are mammals.
Killer whales are mammals and have two internal lungs. They are not fish, and therefore have no gills.
All whales have lungs. No whale has gills. The whale Shark has gills, but that name comes from it being a Shark - a fish - the size of a whale.
whales
They can't. Dolphins and Whales have lungs, not gills. they have to Surface to Breathe. They hold their breath while diving.
Whales
Respiration in starfish occurs in two locations. The first is through the skin on the ends of its feet. The second is in the gills. The gills are lined with tiny hairs called cilia that filter out unnecessary materials. Oxygen is taken out of the water as the starfish exhales carbon dioxide.