Describe two ways the material in this lesson illustrates the 14th of creativity in scientific investigation

Compare and contrast physical changes with chemical changes.

What natural processes produce large quantities of co2

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.