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# Introduction to Microbiology Workbook ## pH Scale The pH scale measures acidity and alkalinity. - **Acidic:** pH levels below 5.5 - **Neutral:** pH levels around 6 to 8 - **Alkaline:** pH levels above 9 ## Terms | Term | Definition | |---|---| | Acidophile | Organisms that thrive in acidic en...

# Introduction to Microbiology Workbook ## pH Scale The pH scale measures acidity and alkalinity. - **Acidic:** pH levels below 5.5 - **Neutral:** pH levels around 6 to 8 - **Alkaline:** pH levels above 9 ## Terms | Term | Definition | |---|---| | Acidophile | Organisms that thrive in acidic environments, typically with a pH below 5.5 | | Neutrophile | Microbes that prefer neutral pH levels, typically around 6 to 8 | | Alkaliphile | Organisms that thrive in alkaline environments, typically with a pH above 9 |