Question

what did doctors learn about the human body during the scientific revolution?
the stomach digested food.
the lungs filtered air.
the heart pumped blood through the body

Explanation:

During the Scientific Revolution, William Harvey discovered the circulation of blood, showing that the heart pumped blood through the body. Knowledge about the stomach digesting food and lungs filtering air was not newly - learned during this time in the context of the major discoveries.

Answer:

The heart pumped blood through the body