biology

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Across
  1. 1. The study of fishes
  2. 3. The study of bacteria
  3. 4. Father of medicine
  4. 7. Father of biology
  5. 8. The study of birds
Down
  1. 2. Father of botany
  2. 5. The study of prehistoric forms of life through fossils of plants and animals
  3. 6. The study of insects