With respect to the respiratory apparatus,pick out the incorrect pair/pairs.

  • A
    Insects - Tracheoles
  • B
    Amphibians - Skin and lungs
  • C
    Starfish - Dermal branchiae
  • D
    Crustaceans - Lungs

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In the lower order of invertebrate animals,how does the respiration process take place?

What is the site of gaseous exchange in an insect?

Match the following columns:
Column-$I$ (Invertebrates) Column-$II$ (Respiratory Organs)
$P$. Sponges,Coelenterates,Flatworms $I$. Gills
$Q$. Earthworms $II$. Simple diffusion through body surface
$R$. Insects $III$. Vascularized bags (Lungs)
$S$. Aquatic arthropods and molluscs $IV$. Tracheal tubes
$T$. Terrestrial arthropods and molluscs $V$. Moist cuticle

Which function is served by the tracheal system in insects?

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