Question

match the body function with the two organ systems. oxygen is exchanged for carbon dioxide & then delivered by blood cells throughout the body.
skeletal
circulatory
digestive
respiratory

Explanation:

To solve this, we analyze the body function: "Oxygen is exchanged for carbon dioxide & then delivered by blood cells throughout the body."

1. Respiratory System Role: The respiratory system is responsible for gas exchange (oxygen in, carbon dioxide out) in the lungs.
2. Circulatory System Role: The circulatory system (via blood cells) then transports the oxygen (and nutrients) throughout the body and carries carbon dioxide back to the lungs for exhalation.

So the two organ systems matching this function are Respiratory (for gas exchange) and Circulatory (for transport via blood cells).

Answer:

Respiratory and Circulatory