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  • Which of the following is visible only in sexually mature earthworm?  Option: 1 Peristomium  <div class='

Which of the following is visible only in sexually mature earthworm?

 

Option: 1

Peristomium

 


Option: 2

Prostomium

 


Option: 3

Clitellum

 


Option: 4

All of these


Answers (1)

best_answer

 

  • In a mature earthworm, segments 14-16 are covered with a dark band of glandular tissue called clitellum.
  • Therefore, the body of the earthworm can be divided into pre-clitellar, clitellar and post-clitellar regions.
  • Clitellum can be defined as the thin and non-segmented region towards the head that secretes a viscid sac in which the eggs are deposited. 
  • Hence, the main function of the clitellum is to store the eggs of the earthworm.
  • The clitellum is a part of the reproductive system.
  • It is visible when the earthworm is sexually active.
     

The clitellum is a part of the reproductive system. It is visible when the earthworm is sexually active.

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Pankaj

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