Unit 8 Test Review Crossword Puzzle

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Across
  1. 1. Mushrooms are an example of a _________.
  2. 4. Hunt prey for food, like a lion
  3. 7. Always at the base of an energy pyramid
  4. 11. Eats only plants
  5. 13. Eats both plants and animals
  6. 15. The movement of humans into a city
  7. 16. An energy ________ shows how energy in an ecosystem decreases at each level.
  8. 17. Food, water, shelter, space are called _______ factors
  9. 18. A limiting factor involving two or more species fighting over something
  10. 19. Mutualism, commensalism, and parasitism are ________ relationships.
  11. 20. Both organisms benefit
Down
  1. 2. Primary, secondary, tertiary
  2. 3. A non-living part of an ecosystem
  3. 4. A group of the same species
  4. 5. The removal of trees from an environment
  5. 6. The result of over-grazing farm animals
  6. 8. Eats only animals
  7. 9. One organism benefits, the other is unaffected
  8. 10. A group of different species
  9. 12. A living part of an ecosystem
  10. 14. One organism benefits, the other is harmed
  11. 16. Hunted by predators for food, like a rabbit