Why is VRBA (Violet red bile agar) only pasteurized rather than sterilized prior to use?

Explanation:

This is because Violet and red bike is only a selective medium that detect and analyse lactose coliform microorganisms that cause fermentation and this is present in diary products like milk. This is milk use for microbiological analysis of milk because of it ability to detect lactose which is a milk sugar. There fore it cannot be use for sterilization.

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.