biology history<3

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Across
  1. 4. the study of heredity and the variation of inherited characteristics
  2. 5. discovered the double-helix structure of DNA
  3. 6. he discovered thte circulation of blood
  4. 7. father of biology
  5. 9. the change in species over time through natural selection and genetic variation
Down
  1. 1. he is famouss for his theory of natural selection on the Origin of Species
  2. 2. he and Theodor Schwann developed the cell theory
  3. 3. a physician who studied anatomy through dissection of animals
  4. 4. his second name is Mendel
  5. 8. he coined the term cell after observing cork under a miscroscope and noting its compartmentalized structure