Identify the term being defined.
the force that keeps the nucleons bound inside the nucleus of an atom
the amount of energy needed to split the nucleus into individual protons
and neutrons
the difference between the mass of the nucleons and the mass of the atom

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.