Table 13-18 
-Refer to Table 13-18. What is the shape of the average-total-cost curve?
Definitions:
Yeasts
Microscopic, single-celled fungi that are used in baking and fermentation processes, helping in the leavening of bread and production of alcoholic beverages.
Protozoans
Single-celled eukaryotic organisms, often parasitic and capable of movement, that belong to the kingdom Protista.
Infestation
The presence of a large number of pests or parasites in a particular area or on a host, causing damage or disease.
Outbreak
The sudden start or increase of a disease or illness in a specific area or among a specific group of people.
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