Answer:
based on my research:
Explanation:
oxygen
Animals need air, water, and foodto survive. Animals take in air by breathing. They need oxygen, which is in the air. Oxygen allows the animal to make and use energy, which it needs to survive.
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Answers & Comments
Answer:
based on my research:
Explanation:
oxygen
Animals need air, water, and foodto survive. Animals take in air by breathing. They need oxygen, which is in the air. Oxygen allows the animal to make and use energy, which it needs to survive.