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The nitrogenous waste in earthworm consist of about

A. 40% urea and 40% uric acid

B. 50% urea and 40% ammonia

C. 40% ammonia and 20% amino acids

D. 60% ammonia and 20% amino acids

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  1. The direction of blood flow in the dorsal vessel of earthworm is
  2. Chloragogen cells of Pheretima play a role very much like that of
  3. A skeleton like function during locomotion of Pheretima is performed by
  4. The terminal nephridial ducts of the septal nephridia of Pheretima open into
  5. Annelids show advancement over the nematoda in having
  6. Anticoagulant secreted by leech is
  7. In Pheretima, the blood glands are located
  8. The cliteilum singulum in earthworm is formed by
  9. The chloragogen cells of earthworm are analogous to
  10. Earthworm is useful because it
  11. Role of typhlosole in the intestine of earthworm is
  12. Totally marine annelids belong to the
  13. Which region in earthworm is the forest of nephridia ?
  14. Haemoglobin is dissolved in plasma is
  15. The enteronephric nephridia in earthworm are
  16. The coelomic fluid in earthworm escapes through
  17. In earthworm fertilisation occurs in
  18. Structure typically represented in every segment of earthworm is
  19. Which of the following statements is correct ?
  20. The number of segments in leech is
  21. Chetae are totally absent in
  22. The dorsal blood vessel in earthworm is
  23. In the blood vascular system of earthworm there are four pairs of hearts present in the first 13 segments.…
  24. Pheretima is
  25. Locomotion in Earthworm is directly facilitated by
  26. In earthworm testes are situated in the
  27. The nitrogenous waste in earthworm consist of about
  28. The septal and pharyngeal nephridia open into the alimentary canal and are of enteronephric type. It…
  29. Spermathecae in earthworm represent
  30. The gizzard of earthworm is an organ of