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BIRDS (Characteristics that enables a bird to fly (Feathers (for flight…
BIRDS
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Reproduction
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incubate
maintain favorable conditions, for their egg or eggs and feed the young after hatching
Respiration
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exhalation
deoxygenated air leaves the respiratory system
and oxygenated air from the posterior sacs is sent to the lungs
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Evolution
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ancient bird with a reptile-like tail, clawed fingers on the wings, teeth, and a body covered with feathers
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