Explanation:
B. to break down food so that it can be used by the body
I'm pretty sure that the constant in the scientific process can not be changed because it is constant. If constant isnt an option, a data record can not be changed.
It is C. He said that they where formed in layers.
The small intestines have a protective lining that is resistant to acids
A. <span>They are sense organs that are part of the central nervous system.</span>
