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Which of the following options gives the correct categorization of animals according to the type of respiratory structures.
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Mechanisms of breathing vary among different groups of animals depending mainly on their habitats and levels of organization. Lower invertebrates like sponges, coelenterates, flatworms, etc., exchange O with CO by simple diffusion over their entire body surface. Earthworms use their moist cuticle and insects have a network of tubes (tracheal tubes) to transport atmospheric air within the body. Special vascularized structures called gills are used by most of the aquatic arthropods and molluscs whereas vascularized bags called lungs are used by the terrestrial forms for the exchange of gases. Among vertebrates, fishes use gills whereas reptiles, birds and mammals respire through lungs. Amphibians like frogs can respire through their moist skin also. Mammals have a well developed respiratory system.
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Question Text | Which of the following options gives the correct categorization of animals according to the type of respiratory structures. |
Updated On | Feb 19, 2023 |
Topic | Animal Kingdom |
Subject | Biology |
Class | Class 11 |
Answer Type | Text solution:1 Video solution: 1 |
Upvotes | 110 |
Avg. Video Duration | 1 min |