The answer is B metabolism is the sum of all the internal systems in one organism
Metabolism is the chemical process that balances and regulates the building and breakdown of the substances in the cells of the body. Thus, option A is correct.
Metabolism is the process that occurs in the body where the cells undergo chemical transformations. It is a crucial process that builds and breaks the substances and food for growth and development, reproduction, etc. It breaks the food through catabolism and builds through anabolism.
Therefore, metabolism is the balance between building and breaking down.
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