Question

how does this structure of the bird help in its movement?e​

Answer 1

Answer:

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) The presence of pneumatic bones to reduce weight.

(v) The presence of additional air sacs to supplement respiration.

Explanation:

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Answer 2

Birds

• All birds can walk on the ground, some can swim, and most of them can fly. The bodies of most birds are well-suited for flying.
• They have light and hollow bones, and the bones of the hind limbs are used for walking and perching.
• The wings that we see are the bony parts of the forelimbs.
• A bird has strong shoulder bones, and a large breastbone. This bone controls the muscles of flight in the body.