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1. Mass of cells in the body that produces chemical substances . |
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Answer» Answer: Almost 99% of the mass of the human body is made up of SIX elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another FIVE elements: potassium, sulfur, SODIUM, chlorine, and magnesium hope helpful PLZ MARK me brainliest |
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