They possess an endoskeleton characterized by porous and hollow bones.

  • A
    Mammals
  • B
    Amphibians
  • C
    Fishes
  • D
    Aves (Birds)

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Similar Questions

Birds are:

The right-sided aortic arch is a characteristic feature of:

The characteristic feature of birds which makes them different from reptiles is $-$

Which of the following characteristics apply to penguins?
$(P)$ Presence of crop and gizzard
$(Q)$ Internal fertilization and viviparity
$(R)$ Absence of teeth
$(S)$ Open circulatory system

What is the primary function of pneumatic bones in birds?

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