Cells use nutrients and oxygen which are transported to supply the body with the energy it needs. What three body systems are working together in this situation?

Question

A.
digestive, respiratory, and circulatory systems

B.
nervous, digestive, and circulatory systems

C.
digestive, circulatory, and excretory systems

D.
circulatory, immune, and respiratory systems

Answer 1

The correct answer is:

A. digestive, respiratory, and circulatory systems.

The digestive system breaks down food to extract nutrients, the respiratory system facilitates the exchange of oxygen and carbon dioxide, and the circulatory system transports both the nutrients and oxygen to cells throughout the body.