Question

Which one of the following is characteristic of birds?

• A. They are aquatic animals.
• B. They are cold blooded.
• C. They are bipedal and have feathers.
• D. They are quadruped and have scales.

Answer 1

Answer: (C)

They are bipedal and have feathers.

Mammals like birds are also warm-blooded and some mammals like bats also fly in the air like birds. All birds are bipedal and have the body covered with feathers except for hind limbs. No bird is quadruple and birds have scales only on hind limbs. Thus, the correct answer is option C.