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Humans and animals use oxygen to breathe. Plants exhale oxygen.
We do not use 100% of the Oxygen we inhale. we use only around 20% of it. Birds are more efficient and can absorb around 40% of their intake.
Oxygen and nitrogen gas, along with most of the other components of air that the body does not use.
Our metabolisms take advantage of a reaction between oxygen gas and compounds such as glucose to release energy. Oxygen compounds do not contain the same energy and do not react in quite the same way with other substances, so we cannot use them. Most substances that are as reactive as oxygen are toxic, but we have adapted specifically to be able to use oxygen.
Cellular respiration is a process that requires oxygen. So when you breathe you take in oxygen to that your mitochondria can use it to create ATP.
Animals do not use up all the oxygen in the atmosphere because plants produce oxygen. When they breathe, plants inhale carbon dioxide (which is what animals breathe out) and exhale oxygen (which is what animals breathe in).
You don't use all of it but you do use a lot of it i am not 100% certain how much you use though
We breathe in oxygen and breathe out carbon dioxide. Plants take in this carbon dioxide and release oxygen, which we use after that.
Animals breathe in oxygen in the air.
To Breathe.. You Use Your Lungs To Breathe In Oxygen And Breathe Out Carbon Dioxide.
so you can breathe
They use them to breathe with, to get oxygen from the air.
if u r talking about mouth-to-mouth respiration, you might be wondering, the person exhaling have used up all the oxygen in the air, so why does the inhaling person can still get oxygen? The answer is, actually we cannot use up all the oxygen in the air we breathe in. There is approx. 21% oxygen in the atmosphere (i.e. in the air we breathe in), but in the air we breathe out, depending on our activity level, will have 4-5% less oxygen. Therefore we actually still have around 16% of oxygen in the air we breathe out. Therefore the person helped with artificial respiration can use this oxygen
They breathe in carbon dioxide and breathe out oxygen. That's how they help us. It's called photosynthesis, requiring the use of the sun and CO2. It produces sugar, energy, and O2.
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!
to breathe
Great Whites - like all Sharks - use gills to filter oxygen from the water. They can't breathe air.