| Column-$I$ | Column-$II$ |
| $(p)$ Sponges | $(I)$ Through tracheal tubes |
| $(q)$ Insects | $(II)$ Through lungs |
| $(r)$ Molluscs | $(III)$ Vascularized gills |
| $(s)$ Reptiles | $(IV)$ Simple diffusion over their entire body surface |
| $(V)$ By their moist cuticle |
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| List-$I$ | List-$II$ |
| $A$. Molluscs | $I$. Pulmonary respiration only |
| $B$. Reptiles | $II$. Branchial respiration |
| $C$. Adult amphibians | $III$. Cellular respiration |
| $D$. Amoeba | $IV$. Pulmonary and Cutaneous respiration |
| Column $I$ (Animals) | Column $II$ (Respiratory organs) |
|---|---|
| $i$. Sponges | $a$. External gills |
| $ii$. Insects | $b$. Plasma membrane |
| $iii$. Limulus | $c$. Tracheae |
| $iv$. Amphibian tadpoles | $d$. Book gills |
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