Question

Which is not found in birds?

• A. Hollow bones
• B. Air sacs
• C. Hindlimbs
• D. Forelimbs

Answer 1

The correct option is D Forelimbs

Forelimbs are not found in birds as it is modified to wings. The forelimbs as wings give birds the power of flight although it is used for swimming underwater in some birds like penguins. The wings are specially developed for flight, having a large surface area and very little weight.

Hence, option D is correct.