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  •  The excretory structures found in earthworm are  Option: 1 Kidneys <p dir=

 The excretory structures found in earthworm are

 

Option: 1

Kidneys

 


Option: 2

Nephridia

 


Option: 3

Keber’s organs

 


Option: 4

Both a and c

 


Answers (1)

best_answer

 

 

Excretory Structures in Animals -

  • Protonephridia or flame cells are the excretory structures in Platyhelminthes (Flatworms, e.g., Planaria), rotifers, some annelids and the cephalochordate – Amphioxus.
  • Protonephridia are primarily concerned with ionic and fluid volume regulation, i.e., osmoregulation. 
  • Nephridia are the tubular excretory structures of earthworms and other annelids.
  • Nephridia help to remove nitrogenous wastes and maintain a fluid and ionic balance. 
  • Malpighian tubules are the excretory structures of most of the insects including cockroaches. 
  • Malpighian tubules help in the removal of nitrogenous wastes and osmoregulation.
  • Coxal glands are found in arachnids for excretion
  • Antennal glands or green glands perform the excretory function in crustaceans like prawns.
  • Molluscs show Organs of Bojanus and Keber’s organs for excretion
  • Neural glands are present in urochordates such as Herdmania for excretion
     

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Nephridia are the tubular excretory structures of earthworms and other annelids. Hence the cprrect option is b. nephridia

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Riya

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