It is a stimulus because parts of the ear respond to exact stimuli which would make this a stimulus. Our bodies make us able to hear normally but some people's bodies are not able to respond to the stimuli which unfortunately explains deaf people.
Hope this helps! Would love brainliest if possible:)
Answer:
Pili, Nucleoid, and Capsule (lmk if those were right please I did this stuff a long time ago lol)
Because when walking away it shows the other person that you dont care what they think/feel so the stop trying to impress.