asdf

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Across
  1. 3. the main large organ of the respiratory system
  2. 6. small finger-like projection in the small intestine that absorbs nutrients into the blood
  3. 7. This organ pumps blood throughout the body
  4. 10. body system that moves blood around the body
  5. 12. digestive system organ that contains villi (2 words, no spaces)
  6. 14. human blood is ALWAYS this color
  7. 16. Tiny blood vessel that allows oxygen and nutrients to pass to cells
  8. 17. body system that breaks down food
  9. 18. The waste product exhaled from the lungs during breathing (2 words, no space)
Down
  1. 1. body system that gets gases into/out of body
  2. 2. last name of our VERY MUCH ALIVE classroom "pet"
  3. 4. multiple cells working together
  4. 5. Blood vessel (tube) that carry blood away from the heart
  5. 8. Blood vessel (tube) that carries blood back to the heart
  6. 9. Small air sacs in the lungs where gas exchange happens
  7. 10. smallest functional unit of an organism
  8. 11. a living thing
  9. 13. broken down food that villi put into the bloodstream
  10. 15. parts that work together
  11. 19. A gas that we breathe in to stay alive, and is carried in red blood cells