Distinguish between the following (a) Pr | Class 11 Biology Chapter Structural Organisation in Animals, Structural Organisation in Animals NCERT Solutions

Question: Distinguish between the following
(a) Prostomium and peristomium
(b) Septal nephridium and pharyngeal nephridium
Answer:

 (a)

Prostomium

Peristomium

Prostomium is a small fleshy lobe, which overhangs the mouth of an earthworm. It helps the organism push into the soil and is sensory in function.

The first body segment in the earthworm is called the peristomium. It surrounds the mouth opening.

(b)

Septal nephridium

Pharyngeal nephridium

They are present on both sides of inter-segmental septa behind the 15thsegment and they open into the intestine.

They are present as three paired tufts in the fourth, fifth, and sixth segments.

 


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Comments

  • Jikki
  • 2019-09-15 15:12:05

Thanks

  • Amalrajs
  • 2019-07-29 19:29:14

Thanks😘😘😘😘😘

  • rahul roshan
  • 2019-06-21 06:17:19

Thank u.....!

  • rahul roshan
  • 2019-06-21 06:15:15

Thank you

  • Haripriya kasera
  • 2017-09-08 00:02:09

Thnk u 🙂

  • faiza
  • 2015-04-20 10:31:30

good

Comment(s) on this Question

Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 5: Distinguish between the following (a) Prostomium and peristomium (b) Septal nephridium and pharyngea....

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