1) what is this organ a) LUNGS b) BRAIN c) HEART 2) are tiny blood vessels that connect the arteries to veins a) Arteries b) veins c) blood capillaries d) lungs 3) An artery  a) carries blood from the heart to body cells b) carries blood to the heart. c) carries water to the heart. 4) the circulatory system a) transports water, air, and wine to cells and carries away wastes. b) transports oxygen, nutrients, and other substances to cells and carries away wastes. c) transports only oxygen 5) ................Return the blood back to the heart a) Arteries b) veins c) stomach 6) In plant’s leaves, light energy is converted into ...................... a) kinetic energy b) electric energy c) chemical energy 7) ......................responsible for reproduction. a) stem b) flower c) leaves

CIRCULATORY SYSTEM

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