Bios, Metron, Logos Review

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Across
  1. 2. a tiny life form, like plankton
  2. 7. a scientist who studies ancient plants or animals
  3. 8. using words of regret to say 'I'm sorry'
  4. 9. a doctor who measures your eyes
  5. 10. the study of cultures and people
  6. 12. creatures that live on land or water that give off light
Down
  1. 1. a written story about one's own life
  2. 3. a scientist who studies rocks
  3. 4. one who studies plants and animals
  4. 5. the study of shapes in math (and of the earth)
  5. 6. the measure across a circle
  6. 8. against living things that invade the body
  7. 11. one hundredth of a meter, about the width of your finger