Since I have not seen the simulation, I can give a generic definition. A balanced chemical equation is when the mass of each element of the reactants (left side) is equal to the mass of each element in the products (right side).
Answer:A balanced chemical equation is a way to show how the number of each type of atom is identical in both the reactants and the products of a chemical equation.
Helper T cells <span>are required for almost all </span>adaptive immune responses<span>. They not only help activate B </span>cells to<span> secrete antibodies and macrophages </span>to<span> destroy ingested microbes, but they also help activate cytotoxic </span>T cells to<span> kill infected target </span>cells<span>.</span>
