Science

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Across
  1. 5. The system with the goal to get waste out of the body
  2. 6. the system with the goal to exchange gases (oxygen and carbon dioxide)
  3. 10. each of the pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn
  4. 11. the system that helps reproduce
  5. 13. The system made of bones
Down
  1. 1. Filters out cell waste
  2. 2. a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation
  3. 3. transports nutrients and oxygen around the body
  4. 4. Chemical messengers produced by glands
  5. 7. The system made of muscle
  6. 8. System that includes glands
  7. 9. The system that breaks down food and absorbs the nutrients
  8. 12. includes the brain, spinal cord, and a complex network of nerves.