| Column-$I$ | Column-$II$ |
| $A$. Fish | $(I)$. $3$-chambered heart |
| $B$. Amphibians | $(II)$. Incomplete double circulation |
| $C$. Aves | $(III)$. $4$-chambered heart |
| $(IV)$. Single circulation | |
| $(V)$. $2$-chambered heart | |
| $(VI)$. Double circulation |
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