Skin of man cannot act as a respiratory organ because
- AIt is dry
- BIt is not thin
- CIt is not permeable to $O_2$ and $CO_2$
- DAll of these
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The respiratory organs vary in different animals due to their
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View SolutionChoose the correct option by matching the organisms in Column-$I$ with their respective respiratory organs in Column-$II$.
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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| $(V)$ By their moist cuticle |
Find the correct sequence for $p-q-r-s$.
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