word study homework

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Across
  1. 3. lively,animated
  2. 4. the study of the heart and its functions
  3. 6. the study of handwriting and what it reveals about a person
  4. 9. ecological community of living things
  5. 11. an account of somebody´s life written by that person
  6. 12. scientist who studies biology or living things
  7. 13. study of life
Down
  1. 1. the removal of a sample from a living tissue
  2. 2. the written account of somebody´s life
  3. 4. the tracing made by a heart monitor
  4. 5. medicine that works against bacteria
  5. 7. the set of rules for hand written language
  6. 8. of or pertaining to life
  7. 10. the science or branch of biology dealing with animals
  8. 12. planet earth´s surface