Answer:
Preservation usually involves preventing the growth of bacteria, fungi (such as yeasts), and other microorganisms.
Step-by-step explanation:
Nature uses microorganisms to carry out fermentation processes, and for thousands of years mankind has used yeasts, molds and bacteria to make food products such as bread, beer, wine, vinegar, yogurt and cheese, as well as fermented fish, meat and vegetables reduce food spoilage.
^Hope it helps, Hazel^