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Biology 15 Online
shasha12:

PLEASE HELP! Can skin, arteries, veins, capillaries be defined as tissues, organs, organ systems, or cells

shasha12:

@Falconmaster could the answer be organ?

Falconmaster:

and organ is a lung

Falconmaster:

but sounds like it could be

shasha12:

Thank you :)

Falconmaster:

welcome

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