Question

Describe the aerial adaptations in birds

Answer 1

1. LIGHT BONES

2.WINGS

3. TINY CROSS PIECES TO MAKE BONES STRONGER

4.RIGID SKELETON

5.POWERFUL FLIGHT MUSCLES

6.STREAMLINED BODY

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.
• Females have only one ovary and oviduct (left) to reduce body weight.
• Mouth is without teeth.