Organisms

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Across
  1. 2. examples: liver, heart, stomach, lungs
  2. 3. breaks food down using acid and muscles
  3. 8. where food enters
  4. 10. external exit for urine
  5. 12. complete living thing
  6. 14. where gas exchange takes place
  7. 15. microscopic finger-like folds found in small intestine
  8. 16. carry deoxygenated blood to the heart
Down
  1. 1. filter waste and extra water from blood
  2. 4. groups of similar cells that work together to perform a specific job
  3. 5. the body keeping its internal conditions stable and balanced
  4. 6. carry oxygenated blood away from the heart
  5. 7. control center
  6. 9. cord pathway for messages between the brain and body
  7. 11. organs in females that release eggs
  8. 13. basic building blocks of life