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Across 6. process of converting nitrogen (or another gas) into a form that plants can use 7. most common form of bacteria 8. organisms that do not like oxygen 12. an organism that can create its own food 15. an organism that can perform photosynthesis for food 18. an organism that performs photosynthesis, but must also eat 21. required 23. movement 24. whipelike structure used for movement 25. the only type of bacteria that soybeans and other legumes host to help with nitrogen fixation

Down 1. spiral shape 2. two 3. an organism that eats chemicals for energy 4. when the bacteria form a thick cell wall around itself to "hybernate" 5. a human use of bacteria 9. an organism that performs chemosynthesis for food 10. bacteria that live in extreem environments 11. a form of sexual reproduction where a tube forms between two bacteria cells 13. "function" = do not care 14. the organisms that break down substances in the environment 15. single-celled organism that lacks a nucleus 16. an organism that must eat food for energy 17. organisms that require oxygen 19. rod shape 20. term often used to describe prokaryotes 22. spherical shape