Bacterial are very diverse and quite adaptable, but they still need certain factors in order to thrive. The physical requirements for bacterial growth include pH range, temperature, oxygen concentrations, moisture levels, hydrostatic pressure, osmotic pressure, and radiation levels.
When considering the pH level, bacteria are classified as either acidophiles (acid-loving), neutrophiles (neutral ph range), or alkaliphiles (alkali-loving). The one that causes disease in humans would be the ne...
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