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Biology 20 Online
OpenStudy (anonymous):

Lung cells make up lung tissue, and lung tissue makes up the lungs. The lungs are an example of ____________. A. An organ B. A tissue C. A system D. A cell

OpenStudy (anonymous):

Well, lungs are an organ but it's an example of a system.

OpenStudy (anonymous):

shes right, lungs are considered an organ but i think the answer they are looking for is a system because of the description beforehand

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