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The concept of homology can be applied to

A. gross structures of the body

B. physiological mechanisms

C. biochemical similarities

D. all of these

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  1. Which of the following groups of characters is present in all chordates in some or other stage in their…
  2. Character common in spider, cockroach and centipede is
  3. Spider is not included under class insects because of
  4. The generic name of peacock is
  5. Which of the following is not a diploblas-tic group ?
  6. True fishes possess gills and fins. Which of the following is not a true fish ?
  7. Exclusively marine chelones are known as
  8. Spider differs from insect as
  9. The centipede has
  10. Glass snake is a
  11. Which of the following is not an acoelomate animal ?
  12. Honey-bees belong to the phylum arthropoda and class
  13. Euplectella (Venus flower basket) is a
  14. Flying bats are included under which order of class Mammalia ?
  15. Sea horse is a
  16. Which of the following is homiother-mous ?
  17. The segmentation which affects both external and internal features represented in
  18. Sea Stick refers to group
  19. Diploblastic body with cellular grade of organisation and cellular mesogloea is characteristic of
  20. Cephalisation is a characteristic feature of
  21. Which of the following animals has a ventral nerve cord
  22. Which of the following animals has a diaphragm between the thorax and abdomen ?
  23. Presence of a vestigeal appendix in man suggests that our forebears were
  24. Cloning is possible in nature in
  25. Lobsters and crabs belong to the class
  26. Which of the following shows deuteros- I tome condition ?
  27. Correct statement is :
  28. According / to Whittaker, the five kingdoms into which all living beings are classified are
  29. Which of the following is not correctly matched ?
  30. The larval forms called bladder worms are characteristic of