Which one of the following pairs of items cor | vedclass

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(A) : Nephridia are the excretory organs of earthworms,consisting of simple or branched tubes formed by the ingrowth of ectoderm with cilia at the inn

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Nephridia of earthworm and Malpighian tubules of cockroach: Excretory organs

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(A) : Nephridia are the excretory organs of earthworms,consisting of simple or branched tubes formed by the ingrowth of ectoderm with cilia at the inner end. Excretory products diffuse into the nephridium and are moved to the exterior by ciliary action.Malpighian tubules are the organs involved in the excretion of nitrogenous wastes in cockroaches. They open into the intestine,selectively extract uric acid from the blood,which,together with water and salts,is deposited into the hindgut and excreted in the faeces.Therefore,both are correctly categorized as excretory organs.

Column-$I$	Column-$II$
$A$. Flatworm	$i$. Nephridia
$B$. Earthworm	$ii$. Flame cells
$C$. Cockroach	$iii$. Malpighian tubules
$D$. Roundworm	$iv$. Renette cells

Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?

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Match Column-$I$ (Animal) with Column-$II$ (Excretory structure) and select the correct option:
Column-$I$ Column-$II$
$A$. Flatworm $i$. Nephridia
$B$. Earthworm $ii$. Flame cells
$C$. Cockroach $iii$. Malpighian tubules
$D$. Roundworm $iv$. Renette cells

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