Subject: Science
3. Hollow bones, beak, teeth, wings.
Answers
Answer: Hey buddy, I didn't quite understand what you are trying to convey. But, if you want the importance of each one, here you go☺️
Hollow bones : Hollow bones are also called pneumatised 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.
beak: Bird beaks, which vary greatly in size, form, and color, are important to the animal's survival. They also use their beak to clean themselves, itch, collect material for nesting, and protect their territory. A strong, cone-shaped bill, used for cracking seeds, is found in many birds such as finches and grosbeaks.
teeth : The mouth is an important part of the body. In the mouth are teeth that have three main jobs: smiling, talking, and eating. Our teeth allow us to smile, talk to others, and eat foods. Everyone has a smile that is different from anyone else's, and that makes us special.
wings : The shape of a bird's wing is important for producing lift. The increased speed over a curved, larger wing area creates a longer path of air. This means the air is moving more quickly over the top surface of the wing, reducing air pressure on the top of the wing and creating lift.
Hope it helps you.
Mark my answer as the brainliest answer if it helped you ☺️