EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Bones are full of air spaces in.
A
Amphibia
B
Reptiles
C
Aves
D
Pisces
Explanation: 

Detailed explanation-1: -Pneumatic bones are hollow bones which contain air spaces, which helps make the skeleton light in weight.

Detailed explanation-2: -Hollow bones are also called pneumatized bones, meaning they’re filled with space for air. It is thought that this structure helps with oxygen intake during flight. Air sacs are attached to the hollow areas in a bird’s bones. Essentially, their lungs extend throughout their bones.

Detailed explanation-3: -One of many small hollow spaces in the bones around the nose. Paranasal sinuses are named after the bones that contain them: frontal (the lower forehead), maxillary (cheekbones), ethmoid (beside the upper nose), and sphenoid (behind the nose).

Detailed explanation-4: -Final answer: Birds, bones are light and hollow, filled with air cavities to make the body weigh light for flight in the air.

Detailed explanation-5: -The tail and neck vertebrae are movable, but the body verte-brae are fused together to give the body sufficient strength to support the wings. There are two special types of bones which make up the avian skeletal system: the pneu-matic and medullary bones. The pneumatic bones are important to birds for respiration.

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