Question

birds are adapted to aerial mode of life

Answer 1

Birds have wings that have a slightly ovular shape that enables it to have a lift and drag force without much force applied.

Birds have closely kept feathers to protect them from cold temperatures when flying at high altitudes

Birds have smooth feathers that increase its aerodynamics

Hope this helps

Answer 2

Answer:

• In birds, the forelimbs are modified into wings for flying. Hind limbs are adapted for perching, walking and running.
• Bones are hollow with air cavities which keeps the body light.
• Body is streamlined to reduce resistance of air during flight.
• Exoskeleton is made up of feathers which are crucial for flight.
• Lungs have air sacs which helps to maintain buoyancy during flight.
• Cerebellum is well developed for equilibrium.
• Urinary bladder is absent.