Answer:
just see explainxgzxfdtitithhsfai
I would think of a unicellular organism or a plant, but I'm not too sure on this one, Just trying to help :)
Epithelial, Connective, Muscular, and Nervous
Answer:
As the stomach contents pass from the stomach to the small intestine, their acidity is rapidly neutralized by the addition of HCO3- produced by the pancreasa good thing, too, because the mucosa of the small intestine has no other protection against HCl.
Answer:
Hormones, Cell receptor and glands
