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15-11-2022
Biology

Answered

Below is a picture representing microscopic air sacs where gas exchange
occurs.
Which statement best describes an interaction between two body systems
that is occurring at the air sacs?

OA. Blood vessels are carrying oxygen-poor blood from the heart.
B. Oxygenated blood is moving toward the heart in blood vessels.
OC. Carbon dioxide gathered from cells is moving toward the heart.
OD. Blood from the heart is being oxygenated in the lungs.

Below is a picture representing microscopic air sacs where gas exchange occurs Which statement best describes an interaction between two body systems that is oc class=

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