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Questions and Answers
Which group of animals exchange O2 with CO2 by simple diffusion over their entire body surface?
What structures do most aquatic arthropods and molluscs use for respiration?
What do terrestrial forms use for the exchange of gases?
Which group of animals respire through lungs?
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Which group of animals can respire through their moist skin?
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Study Notes
Respiration in Different Animals
- Flatworms exchange O2 with CO2 by simple diffusion over their entire body surface.
Respiratory Structures
- Most aquatic arthropods and molluscs use book gills or book lungs for respiration.
Terrestrial Respiration
- Terrestrial forms use tracheae or lungs for the exchange of gases.
Lung Respiration
- Vertebrates, such as humans, and some invertebrates, like spiders and scorpions, respire through lungs.
Skin Respiration
- Amphibians, like frogs and toads, can respire through their moist skin.
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Description
Test your knowledge on the diverse mechanisms of breathing in different animal groups, from simple diffusion in lower invertebrates to the use of tracheal tubes in insects. Explore how respiratory organs vary based on habitat and levels of organization.
