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Questions and Answers
Which group of animals exchange O2 with CO2 by simple diffusion over their entire body surface?
Which group of animals exchange O2 with CO2 by simple diffusion over their entire body surface?
- Fish
- Mammals
- Amphibians
- Insects (correct)
What structures do most aquatic arthropods and molluscs use for respiration?
What structures do most aquatic arthropods and molluscs use for respiration?
- Tracheal tubes
- Lungs
- Moist skin
- Gills (correct)
What do terrestrial forms use for the exchange of gases?
What do terrestrial forms use for the exchange of gases?
- Gills
- Tracheal tubes
- Lungs (correct)
- Moist skin
Which group of animals respire through lungs?
Which group of animals respire through lungs?
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Which group of animals can respire through their moist skin?
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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