Living Systems

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Across
  1. 2. Group of tissues working together
  2. 4. Organisms that break down dead material
  3. 6. cycle, The cycle involving carbon in nature
  4. 8. system, Several organs working together
  5. 9. The process by which plants make food using sunlight
  6. 12. Conversion of oxygen and glucose into energy in cells
  7. 14. Group of cells working together
  8. 15. web, System of feeding relationships in an ecosystem
  9. 16. A small unit that makes up all living things
  10. 18. Group of organisms of the same species living in an area
  11. 19. Part of a cell that performs a specific function (plural)
  12. 20. A community of living things and their environment
Down
  1. 1. Variety of life in an ecosystem
  2. 3. A feature that helps an organism survive in its environment
  3. 5. The balance of internal conditions in the body
  4. 7. chain, The chain of organisms showing who eats whom
  5. 10. Place where an organism lives and interacts
  6. 11. An organism that makes its own food
  7. 13. An animal or plant that eats other organisms
  8. 17. The study of organisms and their environment