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Chemical process used to build up or breakdown materials in organism

User Kfeeney
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Answer:

Metabolism is the sum of all catabolic (break down) and anabolic (synthesis) reactions in the body.

Step-by-step explanation:

The metabolic rate measures the amount of energy used to maintain life. An organism must ingest a sufficient amount of food to maintain its metabolic rate if the organism is to stay alive for very long.

User Neargye
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