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Distinguish Between the Following: Septal Nephridium and Pharyngeal Nephridium - Biology

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ConceptEarthworm Anatomy

Question

Distinguish between the following: Septal nephridium and pharyngeal nephridium

Solution

  Septal nephridium Pharyngeal nephridium
1 Occur in segment 15 onward Occur in segments 4,5, 6
2 Attached to the septa Lie on the sides of the gut
3 Their number varies from 80 to 100 per segment There are only 3 pairs of pharyngeal nephridia
4 Remove metabolic wastes from the blood and coelomic fluid Remove metabolic wastes from the blood only
5 These nephridia discharge their excretory matter into lumen of alimentary canal The duct of nephridia of sixth segment open into buccal cavity while ducts of nephridia of fourth and fifth segment open into pharynx.
  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Biology Textbook for Class 11 (2018 to Current)
Chapter 7: Structural Organisation in Animals
Q: 5.2 | Page no. 122
Solution Distinguish Between the Following: Septal Nephridium and Pharyngeal Nephridium Concept: Earthworm - Anatomy.
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