Question

Give three adaptation that the bird has which enable it to fly

Answer 1

Answer:

Birds have many adaptations for flight, but three of the most important are feathers, a hollow and highly modified skeleton and internal organs capable of moving ample amounts of oxygen to flight muscles. Flight is very physically demanding, and birds are highly adapted to meet those demands.

Explanation:

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Answer 2

Three adaptations that the bird has that enable it to fly are-

1. Forelimbs modified Into wings
2. Streamline body form
3. Light and Rigid Endoskeleton.

Forelimbs Modified Into Wings-

• The forelimbs of birds are modified into wings which are the only organ of flight.
• Wings consist of a framework of bones, muscles, feathers, nerves, and blood vessels.
• Wings have a thick, strong leading edge with a convex upper surface and a concave lower surface.
• This increases the air pressure below the wings while reducing the air pressure below.
• This ensures that birds can fly forward and upward during flight.

Streamline Body Form-

• The bodies of flying birds have a streamlined body shape or a teardrop shape. Narrow in the front and back, broader in the middle.
• This body form is achieved by specifically arranged Feathers which reduces the air friction that acts as a drag against the forward-moving body.
• Streamline body form also helps them to conserve energy.

Light And Rigid Endoskeleton-

• Birds have stout and very light skeletons.
• They have pneumatic bones.Pneumatic bones are bones filled with air sacs.
• The Bones are fused and do not have bone marrow
• Birds do not have teeth. The thoracic vertebrae are fused, this keeps the trunk of the body stiff.
• This rigidity of bones supports the body for the rigors of flight.

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