lungs.
Penguins don't have gills. Penguins have lungs, like all birds. They've simply opted for swimming instead of flying.
Embryos from both species have gills
A tadpole breathes through its gills, which are located on the sides of its head. As the tadpole grows and develops into a frog, it will undergo metamorphosis and develop lungs to breathe air instead.
! Fish take oxygen from the water by swallowing water (H20) into their mouths, but they don't take down their throats instead they force the water through their gills where blood in the gills soaks up the oxygen from the water.
Yes, you do need gills to breathe underwater. Gills process the water through them that makes the water allowed to go through the animal's body without drowning them. Gills are the only thing that keep the animals that live underwater, alive. they also don't make you breath the air in-you breath the oxygen in the water!
Fish Use Gills Instead of lungs. Gills Help fish to Breath. Fish Use Gills Instead of lungs. Gills Help fish to Breath.
Lungs are for humans,gills fish
Dogs do not have gills. Dogs have lungs instead.
no, because then those gills gills would need gills and they would need gills and so on, so on. They have specialised cells instead.
through their gills.
Yes, they do have blow holes instead of gills, because they are mammals they are air breathers, which means they have lungs.
all fish have gills. they have gills instead of lungs, so they can breathe under water. Whales and dolphins do not have gills because they are mammals.
fins
gills
No, They receive oxygenated blood through the umbiliacl cord, humans do not have gills.
because humans do not have gills.
Because they have gills instead of lungs !