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Your body is not capable of directly using the nitrogen in air. It is ultimately the source of the nitrogen in the proteins and other nitrogen-containing compounds in your body, but the precursors for these are (mostly) made by nitrogen-fixing bacteria in the soil and then incorporated into molecules by plants. (The "mostly" is because some of the nitrogen used by plants comes from nitrates or ammonia applied as fertilizer.)
Because the body does not use the nitrogen in any way.
nothing, absolutely nothing, nitrogen gas is 70% of the earth's air, it enters our body 30% and goes out 30%.
Biological value
nitrogen is used to help the body eliminate wastes.
negative nitrogen balance.
Positive nitrogen balance
It cannot exceed the limit it has or produces
Nitrogen is not used by the body; oxygen is taken in and carbon dioxide and water goes out.
nitrogen in soil is taken by the plants when that are growing. As cow eat plants these nitrogen present in the plants go inside cow body and converted into glucose for giving cow the energy to move etc...
The human body is about 3% Nitrogen
the nitrogen in its body is released by the action of decomposers
Women whose body fat exceeds 30% and men whose body fat exceeds 25% are generally considered obese.
Because the body does not use the nitrogen therefore it is inhaled and exhaled without difference
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The process by which waste is removed from your body is a part of the digestive system. The food is broken down until all the nutrients are taken out.