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 $D$.

Animal	Excretory organ/Unit
$(a)$ Balanoglossus	$(i)$ Metanephridia
$(b)$ Leech	$(ii)$ Nephridia
$(c)$ Locust	$(iii)$ Flame cells
$(d)$ Liver fluke	$(iv)$ Absent
$(e)$ Sea urchin	$(v)$ Malpighian tubule
$(f)$ Pila	$(vi)$ Proboscis gland

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Match the following:

Animal Excretory organ/Unit

$(a)$ Balanoglossus $(i)$ Metanephridia

$(b)$ Leech $(ii)$ Nephridia

$(c)$ Locust $(iii)$ Flame cells

$(d)$ Liver fluke $(iv)$ Absent

$(e)$ Sea urchin $(v)$ Malpighian tubule

$(f)$ Pila $(vi)$ Proboscis gland

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