Chetae are totally absent in

A. Nereis

B. Hirudinaria

C. Heteroneresis

D. Pheretima

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  1. The dorsal blood vessel in earthworm is
  2. Structure typically represented in every segment of earthworm is
  3. In Pheretima, the blood glands are located
  4. In earthworm, the genital papillae are situated ventrally on segments
  5. Earthworm has no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic…
  6. Earthworm is useful because it
  7. Chloragogen cells of Pheretima play a role very much like that of
  8. A skeleton like function during locomotion of Pheretima is performed by
  9. The terminal nephridial ducts of the septal nephridia of Pheretima open into
  10. Haemoglobin is dissolved in plasma is
  11. Nephrostomes are found in
  12. In the blood vascular system of earthworm there are four pairs of hearts present in the first 13 segments.…
  13. 5. The pre-typhlosolar region in Pheretima extends from
  14. Totally marine annelids belong to the
  15. The gizzard of earthworm is an organ of
  16. Pheretima is
  17. The excretory organs of earthworm are
  18. Earthworms do not have any respiratory organs because
  19. Which of the following statements is correct ?
  20. The cliteilum singulum in earthworm is formed by
  21. Nereis is commonly called
  22. The fertilization in earthworms occurs in
  23. Blood glands in Earthworm are associated with
  24. Anticoagulant secreted by leech is
  25. In earthworm, the nephridia without neprostomes are
  26. Spermathecae in earthworm represent
  27. A chitinous lining in earthworm is found in
  28. The coelomic fluid in earthworm escapes through
  29. Which region in earthworm is the forest of nephridia ?
  30. Sperma thecae in earthworm are meant few