Epiglottis
The epiglottis is a flap of cartilage the covers the entrance to the throat protecting the lungs from obstruction. It moves when we swallow to allow food in.
Answer:
Quite literally Everything
I think the answer would be pesticides... i see you selected it though. was that a wring answer?
I think all three ideas should be selected since they were all in the blue box so it seems like it’s included