Light-weight air-filled bones and a large four-chambered heart helps a bird do what?

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asked Dec 31, 2024 in Science by OBEMelinda80 (550 points)

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answered Dec 31, 2024 by ShermanPiazz (510 points)

fly

Bird organ systems are adapted for flight. For example, they have light-weight air-filled bones and a large four-chambered heart.

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