Which of the following is NOT an example of responding to stimuli? A. Pulling your hand away from something hot. B. Maintaining internal pH levels. C. Stopping at a red light. D. Plants growing towards light.

i think the answer is B. As it does not happen as a response to certain action

Explanation:

hope it helps

the fossil record provides evidence of a common ancestor to many species.

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.