The plural "gills" is the collective term for the breathing tissuesof fish, amphibians, and some crustaceans. These animals use theirgills to extract oxygen from water.
Yes, fish have gills. YES FISH HAVE GILLS the gills are used for the output(takeing the water away) of water after the fish has extracted(picked out) the oxegyn from the wate…r. (MORE)
No they do not! they are mammals so they have lungs like us. theybreathe through a blowhole that's on the top of their heads. But however, one theory says that a dolphin has g…ills and breatheslike a shark. The blowhole is just a meer battle scar from thehorrific battle between the sharks and the whales. They were allleft with bullet holes. (MORE)
The gill of a fish removes dissolved oxygen from the water it lives in. In humans the lung performs a similar role by separating oxygen from the air which is mostly nitrogen.
Land mammals do not have gills because there is no water needed to filter out to get oxygen. Fish have gills because they need to filter out water (and other objects) to get t…he oxygen to breathe. (MORE)