| 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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| Column-$I$ | Column-$II$ |
| $(a)$ Platyhelminthes | $(i)$ Kidney |
| $(b)$ Aschelminthes | $(ii)$ Flame cells |
| $(c)$ Protozoa | $(iii)$ Green glands |
| $(d)$ Arthropoda | $(iv)$ Excretory tube |
| $(e)$ Mammalia | $(v)$ Contractile vacuole |
| Column $-I$ (Organism) | Column $-II$ (Excretory Structure) |
| $A$. Cockroach | $I$. Nephridia |
| $B$. Cat fish | $II$. Malpighian tubules |
| $C$. Earthworm | $III$. Kidneys |
| $D$. Balanoglossus | $IV$. Flame cells |
| $E$. Flatworm | $V$. Proboscis gland |
| Column-$I$ | Column-$II$ |
| $P$. Protonephridia / Flame cells | $I$. Prawn |
| $Q$. Nephridia | $II$. Earthworm |
| $R$. Malpighian tubules | $III$. Cockroach |
| $S$. Antennal gland / Green gland | $IV$. Platyhelminthes,Rotifers,some Annelids and Amphioxus |
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