What two systems are interacting in this scenario? These two systems work together by moving air in and out of the lungs. muscular and respiratory digestive and respiratory digestive and muscular respiratory and circulatory

## Step 1<br />The problem is asking us to identify the two systems that are interacting in the given scenario. The scenario describes the process of moving air in and out of the lungs.<br /><br />## Step 2<br />The process of moving air in and out of the lungs involves the contraction and relaxation of muscles. This is a function of the muscular system.<br /><br />## Step 3<br />The process of moving air in and out of the lungs also involves the exchange of gases, which is a function of the respiratory system.<br /><br />## Step 4<br />Therefore, the two systems that are interacting in this scenario are the muscular system and the respiratory system.