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dude really it's gills ...All mammals have lungs
nothing
spiracles?Spiracles are tiny holes on an insects abdomen used for respiration.Arachnids are the class of Arthropods that use book lungs for respiration. Although the class is divided into Pulmonate Arachnids (Contain book lungs) and Apulmonate Arachnids (Lacking book lungs).The horseshoe crab has book gills which evolved into book lungs in other creatures.
The larvae form of amphibians live in water and have gills. When they grow into their adult form they develop lungs. There are three orders of amphibians, Urodela, Anura and Apoda. Some Urodela (e.g Axolotls) retain their gills as adults, other orders do not.
Mammals, birds, reptiles and adult amphibians breathe using lungs. Fish breathe using gills, while juvenile amphibians breathe using gills and spiracles.
Lungs a similar in that they help to bring oxygen into the living things body. The difference is that gills are external and lungs are internal.
Fish Use Gills Instead of lungs. Gills Help fish to Breath. Fish Use Gills Instead of lungs. Gills Help fish to Breath.
Between the lungs/gills and the environment
The lungfish has both gills and lungs.
they breath through their gills and they breath out like us but the only difference is that they have gills and lungs.
Goldfish do not have lungs. Sorry but they have gills. =) Goldfishes do not have lungs. They have GILLS.
spiracles