Biology

123456789101112
Across
  1. 4. a large region with similar climate and life forms
  2. 6. fats and oils used for energy and cell structure
  3. 8. balance of internal conditions in an organism
  4. 9. protein that speeds up chemical reactions
  5. 10. breaking down molecules using water
  6. 11. cell with a nucleus and organelles
Down
  1. 1. a testable explanation for an observation
  2. 2. apparatus organelle that packages and ships proteins
  3. 3. sugars and starches that give energy
  4. 5. community of living things and their environment
  5. 7. attraction between different substances
  6. 12. smallest unit of matter