biology stuff

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Across
  1. 3. introduced the word biology
  2. 5. scientist who studies microbes
  3. 6. scientist who specializes in biology
  4. 8. units of heredity
  5. 9. British naturalist that studies animals
  6. 11. study of microbes
Down
  1. 1. tiny organism visible only under a microscope
  2. 2. the study of the relationship between plants and animals and their environment
  3. 4. prepared his own microscope and studied his teeth
  4. 6. the study of living things
  5. 7. Canadian born botanist
  6. 10. "O" in the term "choggies"