The coelom in Pherethna is

A. continuous throughout

B. continuous throughout except in first 26 segments

C. continuous only in first four segments

D. divided into a number of compartments throughout

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