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The blood (1 of 3)
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Blood cells travel through the circulatory system suspended in a yellowish fluid called plasma. Plasma is 90% water and contains nutrients, proteins, hormones, and waste products. Whole blood is a mixture of blood cells and plasma.
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13 Visningar · 01/11/24
1,455 Visningar · 01/17/24
2,015 Visningar · 01/17/24
