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HUMAN CIRCULATORY SYSTEM CHAPTER 8 - CBSE BIOLOGY CLASS-VII
The document explains the circulatory system in humans and its role in transporting oxygen, nutrients, and waste throughout the body. It details the components of the circulatory system, including the heart, blood vessels, and blood, while discussing the distinctions between arteries, veins, and capillaries. Additionally, it contrasts double circulation in humans with single circulation in other animals and describes the lymphatic system's function.
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