Urinary bladder is absent in:

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(D) The urinary bladder is a sac-like organ that stores urine before it is excreted from the body.In many reptiles,such as snakes and certain lizards

Vedclass · Accepted Answer

All the above

Vedclass · Answer

(D) The urinary bladder is a sac-like organ that stores urine before it is excreted from the body.In many reptiles,such as snakes and certain lizards (like some species of the suborder $Lacertilia$),the urinary bladder is absent.Crocodiles also lack a urinary bladder.Therefore,the urinary bladder is absent in all the organisms mentioned in the options.Thus,the correct answer is $D$.

Column-$I$	Column-$II$
$(a)$ Protonephridia	$(I)$ In crustaceans like prawns.
$(b)$ Nephridia	$(II)$ In Platyhelminthes,rotifers,amphioxus.
$(c)$ Malpighian tubules	$(III)$ In insects including cockroaches.
$(d)$ Green glands	$(IV)$ In earthworms and other annelids.

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Choose the correct pair.
Column-$I$ Column-$II$
$(a)$ Protonephridia $(I)$ In crustaceans like prawns.
$(b)$ Nephridia $(II)$ In Platyhelminthes,rotifers,amphioxus.
$(c)$ Malpighian tubules $(III)$ In insects including cockroaches.
$(d)$ Green glands $(IV)$ In earthworms and other annelids.

Which one of the following is an excretory organ?

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