Biology- Unit 1- Heart & Heart Disease

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• 2. What is CHD? (7, 5, 7)
• 3. What does the right hand side of the heart (pump) deal with? (12, 5)
• 4. What does the left hand side of the heart (pump) deal with? (10, 5)
• 5. What is contraction of the heart called? What is relaxation? (7, 8)
• 6. What is it often refered to as? (3, 9)