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06-10-2016
Biology

contestada

In a human body, which of the following represents the highest level of structural organization?
A An atom in the lung.
B Lung tissue
C The lungs
D The respiratory stystem

Respuesta :

Alolee12 Alolee12

06-10-2016

D because it's a system and it starts at the atom in the lung then tissues and...

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