Biology Exam Crosswoed

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Across
  1. 3. different populations living together in a defined area
  2. 6. simplest of all the cells
  3. 9. group of organisms of same species living in the same area
  4. 11. control center for the cell
  5. 13. C6H12O6 + 6O2--- energy + 6CO2 + 6H2O
  6. 15. group of orangs working together to perform a specific function
  7. 17. group of simiar cells working together to perform a function
  8. 18. groups of tissues working together to perform a specific function
  9. 19. coded instructions for making proteins
Down
  1. 1. the community and its nonliving surroundings
  2. 2. portion of earth that cantants all of the ecosystems
  3. 4. group of atons small unit of chemical
  4. 5. smallest functioning unit of life
  5. 6. 6CO2 + 6H2O with sunlight C6H12O6 + 6O2
  6. 7. respiration that does not need oxygen
  7. 8. only in plants
  8. 10. an individual living thing
  9. 12. has little organ like stuctures called organelle
  10. 13. controls what enters and leaves the cell
  11. 14. key to the study of biology is learnign about the _______
  12. 16. the basic unit of mass in the international system of units, or SI, is the ______
  13. 20. respiration that needs oxygen