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In earthworm, the nephridia without neprostomes are

A. pharyngeal

B. integumentary

C. both (a) and (b)

D. none of these

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  1. The nitrogenous waste in earthworm consist of about
  2. The number of segments in leech is
  3. 5. The pre-typhlosolar region in Pheretima extends from
  4. The dorsal blood vessel in earthworm is
  5. Locomotion in Earthworm is directly facilitated by
  6. In Pheretima, the blood glands are located
  7. Sperma thecae in earthworm are meant few
  8. Annelids show advancement over the nematoda in having
  9. Role of typhlosole in the intestine of earthworm is
  10. Which of the following statements is correct ?
  11. The excretory organs of earthworm are
  12. Totally marine annelids belong to the
  13. In earthworm, the first segment in which mouth is situated is known as
  14. The female genital aperture in earthworm is present ventrally on segment
  15. The coelom in Pherethna is
  16. The enteronephric nephridia in earthworm are
  17. The coelomic fluid in earthworm escapes through
  18. The fertilization in earthworms occurs in
  19. Haemoglobin is dissolved in plasma is
  20. The terminal nephridial ducts of the septal nephridia of Pheretima open into
  21. The chloragogen cells of earthworm are analogous to
  22. In earthworm, the circular muscles are highly developed in
  23. In the blood vascular system of earthworm there are four pairs of hearts present in the first 13 segments.…
  24. The direction of blood flow in the dorsal vessel of earthworm is
  25. A chitinous lining in earthworm is found in
  26. The septal and pharyngeal nephridia open into the alimentary canal and are of enteronephric type. It…
  27. Earthworm is useful because it
  28. Chromophil cells in earthworm are concerned with the secretion of
  29. In earthworm fertilisation occurs in
  30. A skeleton like function during locomotion of Pheretima is performed by