Multiple choice

Which of the following is not a characteristic feature of aves?

  1. Endothermic

  2. Four chambered heart

  3. Absence of teeth

  4. Soft and moist body

  5. Hollow bones

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Amphibians have moist body due to the presence of mucus glands. However, aves are endothermic animals. They have feathers and scales covering their bodies.

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