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What is the only way in which humans and other animals can obtain nitrogen?

User Noyan
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2 Answers

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Amino Acids and Proteins

The most common form of nitrogen in your body is proteins containing mainly carbon, hydrogen, oxygen and nitrogen. While neither humans nor animals can get nitrogen into their bodies from the air or soil, they do gain nitrogen from vegetation or other animals which eat vegetation.
User LightBender
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Answer:

Because some animals eat plants i think?

Step-by-step explanation:

User Lance Weber
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