I agree with the other person - emotion is the part of consciousness that involves feeling or sensibility.
Feelings and emotions are the same thing - those two words are synonyms, which means their meaning is identical. So when you feel something, that particular something is called emotion or feeling, and is related to sensibility.
I would say 1,2,&4 because bones cant protect organs from bacteria or sunlight.
Drying, refrigerating, and preserving
