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1) fluid connective tissue that circulates throughout the body through blood vessels. a) river b) lymphatic system c) bones d) blood 2) either of the two lower chambers of the heart; right ventricle or left ventricle. a) auricles b) F2 atria c) ventricles d) blood 3) organ of the respiratory system in which gas exchange takes place between the air and blood. a) intestines b) lungs c) lymphatic system d) gut 4) the substance that is present at the end of a chemical reaction. a) product b) reactant c) element d) ignition 5) a biochemical process in which cells break down glucose and oxygen to make carbon dioxide, water, and ATP for energy. a) cellular respiration b) meiosis c) inherit d) DNA 6) involuntary, striated muscle found only in the walls of the heart. a) wall muscle b) abdominal muscle c) cardiac muscle d) heart muscle 7) flap in the heart or a blood vessel that opens to allow blood to flow through in one direction and then closes to prevent blood from flowing back in the opposite direction. a) valves b) arteries c) veins d) capillaries 8) type of blood vessel that carries oxygen-rich blood away from the heart toward the lungs or body. a) valves b) arteries c) veins d) capillaries 9) to receive something, such as traits, from someone who came before you. a) Genetics b) inherit c) sperm d) meiosis 10) science of heredity, or how traits are passed from parents to offspring. a) law b) Genetics c) inherit d) DNA

The Heart

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