Which structure in $Amoeba$ is similar in function to the human kidney?

Match the List-$I$ with List-$II$.

List-$I$	List-$II$
$A$. Planaria	$I$. Malpighian tubules
$B$. Insect	$II$. Nephridia
$C$. Earthworm	$III$. Green gland
$D$. Prawn	$IV$. Protonephridia

Choose the correct answer from the options given below:

Which one of the following is an excretory organ?

Analogy type question:
$(1)$ Amphibians and marine fish : Excrete urea :: Reptiles and birds : .......... .
$(2)$ In prawns : Antennal gland :: Platyhelminthes : .......... .

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

$A$: In Paramecium,the contractile vacuole performs excretion.
$R$: In Planaria,flame cells are present which perform excretion.