To keep certain things where they are: Keep inside the essential parts of the cell; keep outside things that don't belong. To let certain things pass through: Let waste products out; let nutrition and oxygen in.
Water, oxygen, co2
Yes, that's why they have their gills they take in the water and breath in the oxygen, through the water, and let go of the water through their gills
Yah suppose to have the answers gosh not let anyone answer them
When amphibians are young, such as tadpoles, they breath using gills and spiracle. When they metamorphose and reach their adult state they start to breathe air out of lungs. Adult amphibians respire (take in oxygen and let out carbon dioxide) through the skin. They also have other organs of respiration, including gills in the young of all species and the adults of some species, and lungs in the adults of almost all species. Some amphibians can also respire through the mucous membranes of the mouth. Extra note: I have not found evidence of any animal that has both lungs and gills at the same time.
Oxygen exits the plant through the stomata. Water vapors also exits through the stomata.
Yes, because plants go through a process called photosynthesis. When plants go through this process, they let out oxygen.
any animal that is on land at some point in its life obtain oxygen the same exact way we do. the only animal that obtains oxygen in a different way is the fish and it obtains its oxygen by filtering the water it swims through between its gills.
It binds with them the same way oxygen should, but it won't let go. That means that oxygen is no longer capable of binding with the blood cells. That means that although one breathes oxygen, one does not get the oxygen through the body.
Bees respire by a netwprk of tubes called tracheae. They let oxygen in and carbon dioxide out through their tubes-like structures.
Oxygen leaves the leaf because it is actually useless to the plant. We breathe in oxygen, because we need it to survive, and we breathe out carbon monoxide, which is contained in our cells but is harmful to us. Plants work together with us - as we breathe out the carbon monoxide, they take it in because they need it, and in return they let out oxygen, which we need.
Yes, the helium doesn't let oxygen get through to your brain and can definitly make you feel light headed an dizzy.