A) minerals
B) water
C) protein
D) carbohydrates
Correct Answer: B
Solution :
Water contributes about 75-85% of the protoplasm of a living cell. It helps the cell by : Donating IT or OH' ions for various reactions. Keeping constant body temperature. Eliminating waste products through urine and sweat. Keeping balance of mineral ions inside the body thus takes part in maintaining homeostasis
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