biology cathy

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Across
  1. 3. aids the body in movement through muscular contraction
  2. 8. Takes in and digests food, absorbs nutrients and removes
  3. 11. maintains homeostasis; gathers, interprets, and responds to information
  4. 13. sustain body posture and position, maintain body temperature
Down
  1. 1. protects against pathogens, illnesses and other diseases
  2. 2. transports oxygen, nutrients, and other substances through the blood
  3. 4. helps with digestion and nutrient collection
  4. 5. connect your muscles to your bones
  5. 6. takes in oxygen and expels carbon dioxide
  6. 7. keeps us warm by preserving heat
  7. 9. provide protective barrier
  8. 10. filters blood and removes waste products
  9. 12. esponsible for the contractility of the heart