Animal must brethe to survive. The Gas that is used to survive is called OXYGEN (O2). This gas is the waste given off by plants. Another gas animals 'use' to stay alive is CARBON DIOXIDE (CO2). Yes carbon dioxide. Our breathing rate is controled by the medulla oblangata and it does so by checking the level of carbon dioxide that is present in the blood. Example. If someone is drowning and is pulled from the water and the person is not breathing it is recommended that CPR or oral resuscitation is performed. Why? The amount of CO2 that the resuscitater is breathing into the resuscitatee will trigger a reaction in the medulla oblangata that will cause the muscles of the lungs to start working again.
Carbon Dioxide
Oxygen. of course!! All living beings need oxygen to live on earth.
Yes. The tuna, like other fish, respire through their gills. Fish must have oxygen, and their gills are set up to make gas exchange to and from water.
Air
When animals exhale, they release a gas called Carbon Dioxide (CO2) which can be lethal to animals if the gas is present in large quantities. Through the process of photosynthesis plants absorb carbon dioxide from the atmosphere and release oxygen as a byproduct. This helps animals because they need oxygen in order to breathe.
Animals need AIR to breath in - AIR is made up of about 80% Nitrogen and 20% Oxygen. The animals use the Oxygen in the AIR.NOTE if an animal were to breath 100% Oxygen this would eventually kill it, Pure Oxygen is toxic.They need to breath AIR.
oxygen
Oxygen. of course!! All living beings need oxygen to live on earth.
Cows can't survive on gas alone. Neither can humans. Both cows and humans need food and water to survive, not just oxygen (which is a gas we breathe).
Cutaneous gas exchange.
oxygen
oxygen
Methane is given off by animals as a waste gas.
Oxygen is the gas humans and animals need to breathe in.
Many people in big cities breathe polluted air. Why? - the pollution is mixed with the air you breathe. =============================== "Can you breathe it?" is not the question you want to ask. You can breathe anything that's in the form of a gas, or particles dispersed in gas ... carbon dioxide, helium, carbon monoxide, steam, nerve gas, tobacco smoke, alpha-particle plasma, etc. For any gas, the question you want to ask is "How long can you survive while you breathe it ?" You cannot survive as long breathing polluted air as you can survive breathing clean air. In other words, polluted air kills people. Not in a minute, not in an hour, and not in a day. But people don't live as long in polluted air, and that's exactly the same as saying that polluted air kills people.
Yes I do like marriage
She died in a Gas Chamber. She couldn't breathe because the bathrooms were filled with Zyklon B.
the lungfish