Ecosystems and Body Systems

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Across
  1. 3. - body system that brings in oxygen and gets rid of carbon dioxide
  2. 5. - body system that breaks down food into nutrients
  3. 8. - type of forest ecosystem were trees change color
  4. 11. - body system that moves blood, oxygen and nutrients throughout the body
  5. 12. - aquatic ecosystem that contains only salt water
  6. 13. - nonliving factor in an ecosystem
Down
  1. 1. - type of forest ecosystem that is cold and trees do not change color
  2. 2. - terrestrial ecosystem that receives little rainfall and does not contain many trees
  3. 4. - living factor in an ecosystem
  4. 6. - body system that provides structure and support
  5. 7. - body system that controls movement
  6. 9. - aquatic ecosystem that contains both fresh and salt water
  7. 10. - body system that sends signals to control body functions