El átomo esta organizado con electrones ubicados en los orbitales, lo cual se encuentran en subniveles y en un nivel de energía especifico. piensa con que se compara este orden que tiene el átomo:

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.