BIRDS NEED TO KEEP THEIR BODY LIGHT TO HELP IN FLYING. HENCE, THEY SHOW PRESENCE OF SOME ORGANS ONLY AT ONE SIDE. HOW THEIR SKELETON HELPS IN REDUCING THEIR WEIGHT?
Answers
ANSWER -
The adaptations that birds possesses to reduce their weight for flying are -
1. They have feathers which are very light and smooth.
2. They lack heavy bones and teeth. In place of all these, they possesses a beak.
3. The bones of birds are very light. These bones have air sacs and are hollow type.
4. They have streamlined body which helps to decrease the drag force.
5. They have wings.
Answer: Their bones are hollow.
Explanation:
The skeletal system of the birds are usually described as the light weight which is best suited for flying.
As being hollow allows the birds to be light in weight and fly easily in the sky.Their shape of bone also helps in providing strength to the skeletal system of birds.
As they fly they need to be light but very strong in terms of structure. The skeletal system in birds provides maximum energy in minimum efforts.