Which of the following helps a bird to fly?
(a) hollow bones
(b) wings
(c) streamlined body
(d) all

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Solution

(d) all
Hollow bones make the birds light in weight. The wings are made up of feathers and streamlined body reduces air resistance. All these adaptations in birds help them in flying.

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Similar questions

Birds can fly because they have
(a) a streamlined body
(b) hollow bones
(c) wings with feathers
(d) all of these

Which of these body parts help birds to fly?

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