I've checked all the options and I think that the right answer looks like this: Mollusks have highly developed olfactory receptors.
Answer:
I'm pretty sure the answer is 4.
Explanation:
1 and 2 are definitely homeostasis because it is a way to keep your body balanced how it needs to be and 3 would be a natural reaction that your body would make to prevent further pain, but 4 would be a personal choice that is made by the person who stays up.
Common parts
nucleus
endoplasmic reticulum
mitochondria
ribosomes
golgi apparatus
plasma membrane or cell membrane
vesicles
