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Questions and Answers
Which of the following groups of animals exchange O2 with CO2 by simple diffusion over their entire body surface?
Which of the following groups of animals exchange O2 with CO2 by simple diffusion over their entire body surface?
- Fish
- Mammals
- Reptiles
- Coelenterates (correct)
What is the name of the network of tubes used by insects to transport atmospheric air within the body?
What is the name of the network of tubes used by insects to transport atmospheric air within the body?
- Gills
- Cuticle
- Lungs
- Tracheal tubes (correct)
Which group of animals use vascularised bags called lungs for the exchange of gases?
Which group of animals use vascularised bags called lungs for the exchange of gases?
- Molluscs
- Fishes
- Aquatic arthropods
- Terrestrial forms (correct)
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