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Pedicellariae are modified

A. spines

B. tube feet

C. integumentary structures

D. none of these

Correct Answer : A.


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  1. Which one of these is an Echinoderm ?
  2. A calcareous box like test is found in
  3. Madriporite or seive plate is found in
  4. Spines of the body of Sea urchin are
  5. Aristotle's lantern is
  6. Ambulacral system or water vascular system is typically found in
  7. The common name of Antedon is
  8. One of these is a stalked echinoderm
  9. Star fishes are
  10. Sea cucumber belongs to the class
  11. The star fish zygote develops into a
  12. Which of the following systems is found in Echinoderms ?
  13. The larva that occurs in the development of Sea urchin is
  14. Sea cucumber belongs to class
  15. Aristotle's Lantern is present in
  16. The generic name of 'feather star' is
  17. Bipinnaria larva is found in the development of a
  18. Animals with radial symmetry in adults and bilateral symmetry in larvae are
  19. Animals which exhibit radial, pen-tamerous symmetry in adults, and bilateral symmetry amongst larvae,…
  20. Water vascular system is found in
  21. The larva of holothuroide is
  22. In star fish the locomotary organs are
  23. Pedicellariae are modified
  24. Madreporite is associated with
  25. Main difference between starfishes and brittle stars is in the
  26. In which of the Echinoderm, the arms, spines and pedicellaria are absent ?
  27. The Echinoderms are marine animals with
  28. Water vascular system helps in
  29. A very well developed brain is present in
  30. Brittle star belongs to the class