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5Distinguish between the following
    (b) Septal nephridium and pharyngeal nephridium

Answers (1)

Some of the major difference between Septal nephridium and Pharyngeal nephridium is discussed below in the table: 

Septal nephridium Pharyngeal nephridium
These nephridia are found in the 15th segment attached to the septa. Pharyngeal nephridia are found to be present in the 4th, 5th and 6th segments lying on the sides of the gut.
These remove metabolic wastes from the blood and coelomic fluid  These remove metabolic wastes from the blood only. 

 

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Sonika

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