SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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they are hollow
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they are heavy
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they aren’t made of the same thing as mammal bones
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they play no role in flight
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Detailed explanation-1: -Bird bones aren’t just hollow-they’re pneumatized. That is, they’re full of spaces for air. (You have some pneumatized bones, too, mostly around your sinuses).
Detailed explanation-2: -More strength A bird’s main limb bones are hollow, with special struts inside to strengthen them. This makes them stronger than a mammal’s without being heavier. Other bones are more rigid than in a mammal’s skeleton.
Detailed explanation-3: -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-4: -Birds are known to have light and hollow bones.
Detailed explanation-5: -Pneumatized bones are hollow bones because they are filled with air space. It is believed that this shape facilitates oxygen intake during flight.