What is the unique feature of the respiratory system of birds?

  • A
    Gills
  • B
    Lungs with alveoli
  • C
    Tracheal tubes
  • D
    Air sacs

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Similar Questions

Which animal has unpaired lungs?

The respiratory organs vary in different animals due to their

Match the Column $I$ with Column $II$ and select the correct option:
Column $I$ (Animals)Column $II$ (Respiratory organs)
$i$. Sponges$a$. External gills
$ii$. Insects$b$. Plasma membrane
$iii$. Limulus$c$. Tracheae
$iv$. Amphibian tadpoles$d$. Book gills

Which of the following organisms obtain dissolved oxygen from water by diffusion through their body surface during respiration?

In which of the following animals does the diaphragm play no role in respiration?

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