Answer:
D: a Hypertonic sucrose solution
Explanation:
Sucrose cannot pass through the membrane and Hypertonic solution's cause cells to shrink.
The medulla oblongata is a primary respiratory control center. It’s main function is to send signals to the muscle that controls respiration to cause breathing to occur. There are two regions in the medulla that control respiration the ventral respiratory group stimulates expiratory movement.
