This is cellulose,because humans lack enzymes to break it down
Answer:
A) They form chemical bonds with other atoms
Explanation:
In chemistry, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.
An antigen causes the body to make antibodies.
Cytoplasm
Ribosomes
Plasmid nucleoid