Which lists three living units of the human body in order from the simplest to the most complex level of organization?
Which best explains how the body maintains homeostasis?
Which describes organs in the human body?
The esophagus, stomach, and small intestines all function together to digest food and absorb nutrients. Which level of organization is being described?
Which lists three units of an organ system in order from the simplest to the most complex?
Which group contains only organs in a human body?
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