Which of the following happens first within an animal response?
a. interneurons receive and process information about the stimulus.
b. sensory neurons sense a stimulus.
c. motor neurons carry directions from interneurons to muscle cells.
d. sensory neurons pass information about the stimulus to other nerves cells

c

explanation:

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.