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All whales have a blow hole.
Orca Whales have blow holes so when they have water or anything they swallowed they can blow it out. Kind Of like a burp. :)
No whale sharks don't have blow holes they have gills like other sharks
A killer whale only has 1 blow hole to breath from.
Being a baleen whale, humpbacks have TWO blowholes, but a single sinus opening.
Dolphins (and whales, etc) breath through the blow holes on their head.
the hole on the top of their heads are known as blowholes which when they come for air they blow water out of it to get air.
Yes, they do have blow holes instead of gills, because they are mammals they are air breathers, which means they have lungs.
releases body fluids and other whale wastes
Only one. The same as every whale or dolphin.
Whales have lungs and come to the surface to breathe. Their nostrils called blowholes are located on the top of the head to access air easily. Whales exhale, condensation from the 2 blowholes forms a 'v-shaped' 'blow'. when they submerge they hold their breath.
No, at least I don't think so... I know they have 2 blowholes, though. They're right next to each other....