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Which of the following is not included in the human circulatory system?(a) Heart(b) Blood vessels(c) Blood(d) SkinThe question was asked in homework.The question is from Double Circulation in division Body Fluids and Circulation of Biology – Class 11

Answer»

Correct answer is (d) Skin

For EXPLANATION I WOULD say: Human circulatory system which is also called a blood vascular system consists of a muscular chambered HEART, a network of closed branching blood VESSELS and blood, the FLUID which is circulated.



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