Q4 Extra Credit

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Across
  1. 1. the system that serves as the body's support framework
  2. 5. substances that fight pathogens that cause infection and illness
  3. 7. the liquid portion of blood
  4. 8. a unit of energy available from food for use by the body
  5. 10. the sum of traits transmitted to a person by his/her biological parents
  6. 12. a highly addictive stimulant drug found in tobacco
  7. 14. a point at which two bones meet
  8. 15. a healthful aim or purpose that a person can achieve over a lifetime
  9. 17. a balanced state of health
Down
  1. 2. the way in which a person lives
  2. 3. the body system for communication and control
  3. 4. a condition in which the body reacts to a food or other substance
  4. 6. the body's main source of energy
  5. 9. resistance to a particular disease
  6. 11. a hormone that prepares the body for quick action
  7. 13. this protects the ends of bone and keeps them from rubbing together
  8. 15. the state of a person's body, mind, feelings, and how they get along with others
  9. 16. the main organs of the respiratory system