Give two structural adaptation in the birds for flight
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1 they have light weighed bones
2 they have feathers for protection
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Bones are pneumatic.
Fore limbs are modified into wings.
Urinary bladder is absent.
Right ovary and oviduct are rudimentary.
Expecting that it helps
Fore limbs are modified into wings.
Urinary bladder is absent.
Right ovary and oviduct are rudimentary.
Expecting that it helps
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