biology crossword

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Across
  1. 3. a plural of datum.
  2. 4. the physiological system of higher animals, to maintain internal stability
  3. 5. decimal measuring system based on the meter
  4. 6. knowledge of the physical world
  5. 9. the act or process of inferring
  6. 11. living organisms from nonliving matter
  7. 12. A manipulated variable is the independent variable in an experiment.
  8. 14. to devolope gradually
  9. 15. reproduction involving the union of gametes.
  10. 17. The maintenance or growth of dispersed cells in a medium after removal from the body
  11. 19. dependent variable
  12. 20. the science of life or living matter in all its forms
Down
  1. 1. mere assumption or guess
  2. 2. any trial or test of a hypothesis under carefully managed conditions
  3. 7. as budding, fission, or spore formation, not involving the union of gametes.
  4. 8. an act or instance of noticing
  5. 10. instrument that has a magnifying lens for inspecting objects too small to see with ones eye
  6. 13. guess or conjecture
  7. 16. the sum of the physical and chemical processes in an organism
  8. 18. a usually microscopic structure containing nuclear and cytoplasmic matiral