Question

Students of class XII were given a list of following characters such as clawed toes, curved beak, feathers, pneumatic bones, wings and fur. In this list, how many are volant adaptations?

• A. 4
• B. 3
• C. 2
• D. 5

Hint:

Volant adaptations are always associated with reducing body weight and increasing efficiency of flight.

Answer 1

The Correct Option is B

Step 1: Understanding volant adaptations.
Volant adaptations are special structural features that help animals, especially birds, in flying. These adaptations reduce body weight and aid in lift and movement in air.
Step 2: Analyzing each given character.
Clawed toes help in perching and gripping, not directly in flying.
Curved beak helps in feeding, not in flight.
Feathers help in flight by providing lift and insulation.
Pneumatic bones reduce body weight and help in flight.
Wings are essential for flying.
Fur is related to insulation in mammals, not flight.
Step 3: Counting volant adaptations.
Volant adaptations from the list are feathers, pneumatic bones, and wings.
Step 4: Conclusion.
There are three volant adaptations in the given list.