Biology

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Across
  1. 6. the top consumer
  2. 12. excessive richness of nutrients in a water body
  3. 15. the process where water is recycled
  4. 16. the main action which releases greenhouse gases
  5. 17. only eats meat
  6. 19. how carbon dioxide is removed from the atmosphere
  7. 20. how energy is released in to cells
  8. 22. Inside the nucleus
Down
  1. 1. the number of organisms in a species
  2. 2. how waste is removed from the body
  3. 3. soil nitrogen is converted into atmospheric nitrogen
  4. 4. caused by the greenhouse gases
  5. 5. when two organisms fight for resources
  6. 7. when a species dies out
  7. 8. …nutrition, how a fungi feeds
  8. 9. the primary consumer in a food chain
  9. 10. and organism that lacks a membrane bound nucleus
  10. 11. The powerhouse of the cell
  11. 13. a storage space in a cell
  12. 14. eats plants and meat
  13. 18. animal cells do not have this
  14. 21. single strand DNA