Proteins or polypeptides. (They are interchangeable)
.The answer to this question is: C. ionic bond
In general, Ion particle are <span>formed when atoms lose or gain electron (when loses electron, ion become positive. When gaining it, ions become negatively charged)
Among the chemical substances, Metal atoms had the positive ions and nonmetal atoms will have negative ions</span>
the answer is D, also known as glandular fever or mostly referred to the kissing disease when your immune system is fighting off that virus it causes your lymph glands to swell