Gr. 7 Interactions in the Environment

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Across
  1. 2. living elements in an ecosystem
  2. 5. something all organisms need to survive
  3. 11. a single biotic element
  4. 14. an animal that eats both plants and animals
  5. 16. an animal that eats plants
  6. 17. a complex community of organisms interacting
  7. 18. only about 10% of energy is ___________ between levels in an energy pyramid
  8. 19. a food ___: many interconnected food chains
Down
  1. 1. _______ consumers eat producers
  2. 3. an organism that eats other organisms for energy
  3. 4. the 1st law of Thermodynamics says that energy cannot be created or _________
  4. 6. non-living elements in an ecosystem
  5. 7. an organism that makes its own energy
  6. 8. the levels in an energy pyramid are called _______ levels
  7. 9. an animal that eats other animals
  8. 10. the source of most of the energy for ecosystems on Earth
  9. 12. consumers at the top of a food chain
  10. 13. an organism that eats dead organic matter
  11. 15. something all animals need; plants make it during photosynthesis