Biology, 30.07.2019 06:20, alexfvdsdfgfd8151

Which of the following statements are true? 1.molecular hydrogen is used as the medium for the molecules in the body. 2.molecular oxygen is used to break chemical bonds. 3.molecular oxygen is used as the medium for the molecules in the body. 4.water is used as the medium for the molecules in the body. so, the answer are 2 and 4

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