In insects,oxygen is transported to various tissues by ...........
- ADiffusion through the body surface
- BTracheal system
- CRespiratory pigments in the blood
- DGills
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Match the following columns:
Column-$I$ (Plant Part) Column-$II$ (Gas Exchange Structure) $P$. Leaves and young stems $I$. Lenticels $Q$. Woody stems $II$. Stomata $R$. Roots $III$. Root hairs
| Column-$I$ (Plant Part) | Column-$II$ (Gas Exchange Structure) |
|---|---|
| $P$. Leaves and young stems | $I$. Lenticels |
| $Q$. Woody stems | $II$. Stomata |
| $R$. Roots | $III$. Root hairs |
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View SolutionWhich of the following modes of respiration always continues in a frog?
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View SolutionIn crustaceans,respiration occurs through ..........
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View SolutionMatch the following columns:
Column-$I$ (Invertebrates) Column-$II$ (Respiratory Organs) $P$. Sponges,Coelenterates,Flatworms $I$. Gills $Q$. Earthworms $II$. Simple diffusion through body surface $R$. Insects $III$. Vascularized bags (Lungs) $S$. Aquatic arthropods and molluscs $IV$. Tracheal tubes $T$. Terrestrial arthropods and molluscs $V$. Moist cuticle
| Column-$I$ (Invertebrates) | Column-$II$ (Respiratory Organs) |
|---|---|
| $P$. Sponges,Coelenterates,Flatworms | $I$. Gills |
| $Q$. Earthworms | $II$. Simple diffusion through body surface |
| $R$. Insects | $III$. Vascularized bags (Lungs) |
| $S$. Aquatic arthropods and molluscs | $IV$. Tracheal tubes |
| $T$. Terrestrial arthropods and molluscs | $V$. Moist cuticle |
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View SolutionThe respiratory organs vary in different animals due to their
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