Question

What are the modifications that are observed in birds that help them fly?

Answer 1

Birds have undergone many structural adaptations to suit their aerial life. Some of these adaptations are as follows.

(i) Streamlined body for rapid and smooth movement

(ii) Covering of feathers for insulation

(iii) Forelimbs modified into wings and hind limbs used for walking, perching, and swimming

(iv) Presence of pneumatic bones to reduce weight

(v) Presence of additional air sacs to supplement respiration

Hope this will help you.... ✌

Answer 2

The listed below are the modifications that has occured in plants and helps in their flight -

i) Their body is of streamlined type. This feature helps the birds to move smoothly and also to move rapidly.

ii) Feathers covers their whole body acts as an insulation for them.

iii) Also, they have bones that are not solid but are rather pneumatic or hollow bones. This type of bones decreases their weight and makes them lighter to fly.

iv) Air sacs that are of light weight are found in birds that aids in respiring.