Question

Which one of the following organisms bears hollow and pneumatic long bones?

• A. Ornithorhynchus
• B. Neophron
• C. Hemidactylus
• D. Macropus

Answer 1

The correct option is B Neophron

Pneumatic bones are hollow bones filled with air, found in birds. It makes the skeleton light in weight, which makes it easy to fly. It is a characteristic feature of birds.

Hence, among the organisms given in the question, Neophron (vulture) has pneumatic bones.

Ornithorhynchus (Platypus) and Macropus (Kangaroo) are mammals. Hemidactylus (wall lizard) is a reptile. They lack pneumatic bones.