Question

Pneumatic bone is found in

• A. shark
• B. Rana
• C. pigeon
• D. whale.

Answer 1

The Correct Option is C

The question is about identifying which among the given options possesses pneumatic bones. Pneumatic bones are hollow and contain air spaces, making them lighter and aiding in the flight of birds. This adaptation is crucial for reducing the weight of the bird's skeleton, thus facilitating flight. Let's evaluate each option:

1. Shark: Sharks are cartilaginous fishes. Their skeletons are primarily made of cartilage, not bone, and they do not have pneumatic bones.
2. Rana: Rana is a genus of frogs. These amphibians have solid bones that are not adapted for flight and therefore do not have pneumatic bones.
3. Pigeon: Pigeons, being birds, have pneumatic bones. These bones help them fly by decreasing body weight without sacrificing strength. This adaptation is typical of many birds that are capable of flight.
4. Whale: Whales are marine mammals. They have dense bones that aid in diving and do not possess pneumatic bones.

Based on the evaluation above, the correct answer is pigeon.

Conclusion: Pneumatic bones are a characteristic of birds, which facilitates their ability to fly. Therefore, the correct choice that contains pneumatic bones among these options is the pigeon.