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प्रश्न
Fill in the blanks with the help of chart.
| Organism | Habitat | Respiratory surface/ organ |
| Coelenterates | ||
| Spiders |
सारिणी
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उत्तर
| Organism | Habitat | Respiratory surface/ organ |
| Coelenterates | Aquatic | Plasma membraneTerrestrial |
| Spiders | Terrestrial | Book lungs |
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