Chetae are totally absent in

A. Nereis

B. Hirudinaria

C. Heteroneresis

D. Pheretima

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  1. The terminal nephridial ducts of the septal nephridia of Pheretima open into
  2. The fertilization in earthworms occurs in
  3. The dorsal blood vessel in earthworm is
  4. The number of segments in leech is
  5. Blood glands in Earthworm are associated with
  6. Role of typhlosole in the intestine of earthworm is
  7. Which of the following statements is correct ?
  8. Annelids show advancement over the nematoda in having
  9. The female genital aperture in earthworm is present ventrally on segment
  10. Haemoglobin is dissolved in plasma is
  11. Chloragogen cells of Pheretima play a role very much like that of
  12. In earthworm testes are situated in the
  13. Earthworm has no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic…
  14. Nephrostomes are found in
  15. The enteronephric nephridia in earthworm are
  16. Earthworms do not have any respiratory organs because
  17. Anticoagulant secreted by leech is
  18. The septal and pharyngeal nephridia open into the alimentary canal and are of enteronephric type. It…
  19. In earthworm, the circular muscles are highly developed in
  20. Totally marine annelids belong to the
  21. In earthworm, the septal nephridia put their excretory discharge into
  22. A skeleton like function during locomotion of Pheretima is performed by
  23. Nereis is commonly called
  24. Pheretima is
  25. Chetae are totally absent in
  26. The direction of blood flow in the dorsal vessel of earthworm is
  27. The cliteilum singulum in earthworm is formed by
  28. The nitrogenous waste in earthworm consist of about
  29. In earthworm, the first segment in which mouth is situated is known as
  30. A chitinous lining in earthworm is found in