Podcast
Questions and Answers
Which of the following is used by most aquatic arthropods and molluscs for gas exchange?
Which of the following is used by most aquatic arthropods and molluscs for gas exchange?
How do lower invertebrates like sponges and flatworms exchange O2 with CO2?
How do lower invertebrates like sponges and flatworms exchange O2 with CO2?
Insects use which of the following to transport atmospheric air within the body?
Insects use which of the following to transport atmospheric air within the body?
Which respiratory organ is used by terrestrial forms for gas exchange?
Which respiratory organ is used by terrestrial forms for gas exchange?
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How do reptiles, birds, and mammals primarily respire?
How do reptiles, birds, and mammals primarily respire?
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Study Notes
Gas Exchange in Various Organisms
- Most aquatic arthropods and molluscs use gills for gas exchange.
Primitive Invertebrates
- Lower invertebrates like sponges and flatworms exchange O2 with CO2 through diffusion.
Insects
- Insects use tracheae to transport atmospheric air within the body.
Terrestrial Forms
- Terrestrial forms use lungs as the respiratory organ for gas exchange.
Advanced Vertebrates
- Reptiles, birds, and mammals primarily respire using lungs.
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Description
Test your knowledge of the different breathing mechanisms among animals, from simple diffusion over body surfaces to tracheal tubes and gills. Explore how various groups of animals exchange O2 and CO2 based on their habitats and levels of organisation.
