Biological classification - 1

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Across
  1. 2. responsible for producing methane gas
  2. 6. attempted more scientific basis for classification
  3. 10. mode of nutrition in animals
  4. 11. proposed five kingdom classification
  5. 12. number of kingdoms in 3 domain system of classification
  6. 14. cell wall type in Monerans
  7. 19. used simple morphological characters to classify plants
  8. 20. sole members of kingdom Monera
  9. 22. live in extreme habitats
Down
  1. 1. a criterion used by Whittaker to classify organisms
  2. 3. cell type in Protista members
  3. 4. live in hot springs
  4. 5. number of categories bacteria are grouped based on shape
  5. 7. live in extreme salty areas
  6. 8. live in marshy areas
  7. 9. evolutionary relationships
  8. 13. rod shaped bacteria
  9. 15. proposed two kingdom classification
  10. 16. also known as blue green algae
  11. 17. fungal cell wall composition
  12. 18. earlier placed in animal kingdom and lacks cell wall
  13. 21. comma shaped bacteria