5. The pre-typhlosolar region in Pheretima extends from

A. fifth to twenty-sixth segment

B. first to twenty-sixth segment

C. fifteenth to twenty-sixth segment

D. immediately after clitellar region to twenty sixth segment

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  1. The chloragogen cells of earthworm are analogous to
  2. Which of the following statements is correct ?
  3. The excretory organs of earthworm are
  4. 5. The pre-typhlosolar region in Pheretima extends from
  5. Locomotion in Earthworm is directly facilitated by
  6. The terminal nephridial ducts of the septal nephridia of Pheretima open into
  7. The female genital aperture in earthworm is present ventrally on segment
  8. The septal and pharyngeal nephridia open into the alimentary canal and are of enteronephric type. It…
  9. The dorsal blood vessel in earthworm is
  10. The nitrogenous waste in earthworm consist of about
  11. Earthworm has no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic…
  12. Chetae are totally absent in
  13. Nereis is commonly called
  14. In earthworm fertilisation occurs in
  15. Metamerism is present in
  16. Role of typhlosole in the intestine of earthworm is
  17. In earthworm, the septal nephridia put their excretory discharge into
  18. The coelomic fluid in earthworm escapes through
  19. Blood glands in Earthworm are associated with
  20. A chitinous lining in earthworm is found in
  21. The number of segments in leech is
  22. Chromophil cells in earthworm are concerned with the secretion of
  23. Which region in earthworm is the forest of nephridia ?
  24. The coelom in Pherethna is
  25. Copulation occurs between two earthworms
  26. Annelids show advancement over the nematoda in having
  27. In the blood vascular system of earthworm there are four pairs of hearts present in the first 13 segments.…
  28. In earthworm testes are situated in the
  29. Nephrostomes are found in
  30. Pheretima is