The ingredients in MacConkey agar supplies that supplies nitrogen are enzymatic digest of Gelatin, Casein and Animal tissue.
Muscle, hair color, height are the 3 most common physical traits affected by the environment.
You notice pest droppings in various locations of your home. There is clear evidence of nesting in your home from various rodents. Holes and gnaw marks have appeared on your floors, cabinets, or walls. Complaints from neighbors regarding several rodents or other insects running amuck
B natural changes allow for greater biodiversity