Biology Crossword

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Across
  1. 4. An element with a different number of neutrons
  2. 7. Mixtures that don't settle
  3. 8. A cell with a nucleus
  4. 10. An organism that relies on other organisms for food
  5. 13. A cell without a nucleus
  6. 14. A digestive enzyme in the cytoplasm
  7. 17. A process in photosynthesis
  8. 18. A protein used to make things
  9. 19. Provides support and connects bones
  10. 21. Sharing electrons
  11. 22. Glands that cover inner and outer surfaces
  12. 23. A form of symbiosis where one benefits and one s neither helped nor harmed
  13. 24. This is where the calvin cycle takes place
  14. 25. How two organisms react with eachother
Down
  1. 1. Attraction of molecules of the same substance
  2. 2. A job or role of an organism
  3. 3. An organism that makes its own food
  4. 5. Cellular control mechanism
  5. 6. Sends impulses to the brain
  6. 9. Chemical energy for living things
  7. 11. A process in the water cycle sending it from the ground to the clouds
  8. 12. An atom with a net negative charge
  9. 15. The process of removing nitrogen from the soil
  10. 16. The process of keeping the body in relatively good condition
  11. 20. An organ for a cell