The excretory organ in crustaceans,like prawns,is:

The correct sequence of excretory organs in cockroach, earthworm, and rabbit, respectively, is:

Urinary bladder is absent in:

Green glands are excretory in function which are found in

Match the excretory organs listed under column $I$ with the animals given under column $II$. Choose the answer which gives the correct combination of alphabets of the two columns.

Column $I$ (Excretory organs)	Column $II$ (Animals)
$A$. Nephridia	$p$. Hydra
$B$. Malpighian tubules	$q$. Leech
$C$. Protonephridia	$r$. Shark
$D$. Kidneys	$s$. Round worms,$t$. Cockroach

Excretory organ found in earthworm and other annelids is