Santino Agriculture cross word puzzle

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Across
  1. 2. Single-celled organisms
  2. 4. its original form during
  3. 10. suitable for growth.
  4. 11. live in nearly every environment
  5. 13. The mass of a substance per
Down
  1. 1. or evolution.
  2. 3. plant or animal matter.
  3. 5. material: Substances
  4. 6. To transform a structure
  5. 7. To maintain bacteria in a
  6. 8. To change from one form to
  7. 9. An organism that is
  8. 12. Earth.