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Because the nitrogen in the air is in a form not usable to animals and plants. The only way animals get nitrogen to build protein and nucleic acid is by eating it. This is usually through plants, which get there nitrogen from the soil. They get it from the soil because bacteria in the soil turn the atmospheric nitrogen into a usable form.
In a water ecosystem cyanobacteria (a.k.a. blue-green algae) transform the nitrogen from the atmosphere into usable forms of nitrate
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∙ 8y ago
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∙ 11y agoNitrogen is used to replace the air during food packaging and can't be breathed.
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∙ 12y agoThe answer is no it cannot because do we use nitro do the animals ? That's Right they don't so the organisms cant either
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∙ 14y agoN2 in the air is inert and cannot be metabolized by most organisms. Bacterial symbionts are needed to "fix" nitrogen and convert it into ammonia, nitrates or nitrites for metabolic purposes.
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∙ 13y agomost organisms cannot use nitrogen gas directly
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∙ 11y agoI think youre on the right track asking the question on here~but...why dont you just search it on google?
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Why is lightning good?
A lightning blot is full of Nitrogen. So when a lightning bolt flashes it releases Nitrogen into the Atmosphere. Since Humans breathe 75 to 80 percent of Nitrogen it is essential to us.
Why nitrogen does not comes to mouth it is the major gas and it is 75 percent oxygen is 25 percent in air it comes?
Nitrogen does enter the body. Remember, we don't breathe in just oxygen and carbon dioxide. we breathe in AIR and it contains many gases. We only utilize Oxygen for respiration. Though nitrogen is needed by our body, we only take it in the from of food in our diet. The nitrogen we breathe in is an inert gas meaning it does not react with any substance. So the nitrogen we breathe in is breathed out eventually.
The air that you mostly breathe is oxygen carbon dioxide ozone or nitrogen?
The air that we breathe in 78% nitrogen, 21% oxygen, and 1% carbon dioxide, water vapor, and other gases. We only need the oxygen though, so we breathe out the other gases with the carbon dioxide that our body produces during respiration. So to answer your question, it is nitrogen, but we breathe it in and then out- we don't use it. The only gas we use is oxygen to breathe.
Where do animals get nitrogen from?
Animals get their nitrogen from plants and by eating other animals
How do humans add nitrogen to the biosphere?
Humans add nitrogen to the biosphere in the form of nitrate, a major component of plant fertilizer.
How much nitrogen does humans breathe out?
78% 0of the air we breathe is nitrogen, same as the amount in the air.
How does cutting trees affect environment?
It reduces the oxygen in the area because humans breathe in oxygen and breathe out nitrogen.[plants breathe in nitrogen and breathe out oxygen for humans.so without trees.Humans will not survive
Where do humans get nitrogen in there diet?
nitrogen can be found in plants and meats, but also majority of the air we breathe is made up of nitrogen.
You breathe out the same amount of nitrogen as you breathe in Why is this?
because the haemoglobin present in our blood has no capacity to absorb nitrogen so the result is that the nitrogen is not absorbed and you breathe out the same amount of nitrogen as you breathed in.......
Animals can use nitrogen only if it is in the form of?
Air/gas animals and humans breathe in, and a little bit of nitrogen is included in the air it has just breathed in.
How do humans breathe Oxygen?
Yes. The air is 21% oxygen which is what humans run on. It is 79% nitrogen which we filter out. I learned this today in Health class.
Why is lightning good?
A lightning blot is full of Nitrogen. So when a lightning bolt flashes it releases Nitrogen into the Atmosphere. Since Humans breathe 75 to 80 percent of Nitrogen it is essential to us.
How has life altered the atmosphere?
life created the atmosphere through repiration and if we humans some how evolve to breathe nitrogen we can breathe something else out like Carbon Nitroxide
What percentage of nitrogen do you breath in ml?
You breathe in about 78 percent nitrogen. The amount that you breathe in varies.
Can nitrogen kill you?
Gaseous nitrogen is harmless to animals. We breathe a lot of in normal air. Of course, if all you breathe is nitrogen, you will die from lack of oxygen.
Why doesn't the total amount of nitrogen change?
Nitrogen makes up 78% of air, so we obviously breathe it in and because our body doesnt 'NEED' Nitrogen, so however much you inhale, you can exhale the same amount as none of the Nitrogen is used up. hope it helped ;p x
How much of nitrogen is in the air you breathe?
Air is 78% Nitrogen
