Question

Which of the following is not a characteristic of birds?

• A. Lay amniotic eggs
• B. Possess lungs
• C. Hollow bones
• D. Cold-blooded

Answer 1

Answer: (D)

Birds possess lungs. The bones of birds are hollow. Hollow bones make them light-weighted (required for flight). Birds lay amniotic eggs (embryo develops inside an amnion)

Birds are not cold-blooded. They are warm-blooded animals, as they can maintain their body temperature.

Hence, option C is correct.