Lungs
Lungs, gills and sometimes skin.
a snorkel
Pterodactyls do not obtain oxygen at this time because they are extinct. While they existed, they probably obtained oxygen in the same way that birds today obtain it through the use of lungs.
Terrible grammar. Either the asker does not speek English or is mentally challenged. I will slowly answer this question the best that I can. Humans... use oxygen... to breathe... If humans could not breathe they could not do anything industrial! That is "how humans you use oxygen in industry". They breathe it. You should try it. Your brain could use some oxygen numbnut!
Oxygen is used in cellular respiration to obtain ATP, which is used for energy.
FOOD
they use their lungs to breath
its trunk
oxygen
Yes, in a sense tadpoles use gills and lungs to obtain oxygen. When they first hatch they use gills, Eventually, they become less dependent on the gills as they grow lungs.
its denser than oxygen and our bodys werent ment to use it
god, will help you! And dont use this site,