Question

Distinguish between septal nephridium and pharyngeal nephridium

Answer 1

Explanation:

septal naphridium present on15to last body segment of earthworm.it open into intestine. pharyngeal nephridium present 4th,5 th,and 6th segments of earthworm.

Answer 2

Answer:

Septal nephridium:*It is attached to the intersegmental septa

*Present from 15/16 to last segment

*Nephrostome is present,Nephridiopore is absent

So they are called Open-enteronephric

*It collects waste from coelomic fluid and blood

*It's function is excretion and osmoregulation

Pharyngeal nephridium:*They are tufted nephridia and paired bunches

*Present from 4,5,6 segments.

*Nephrostome absent,Nephridiopore is absent.

So the are called Closed enteronephric .

*It collects waste from blood.

*It's function is excretion and osmoregulation.