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प्रश्न
Very short answer question.
Why is respiration in insect called direct respiration?
उत्तर
In insects, the respiratory system is independent of its circulatory system as blood does not play a direct role in oxygen transport but the tracheal tubes directly transport oxygen to the entire body. Therefore, respiration in the insect is called direct respiration.
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| Organism | Habitat | Respiratory surface/ organ |
| Coelenterates | ||
| Spiders |
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