Microorganisms have optimal environmental conditions under which they grow best. Classification of microorganisms in terms of growth rate dependence on temperature includes the thermopiles, the mesophiles and psychrophiles. Similarly, while most...

Tolerance level refers to the maximum allowable amount of chemical residue, such as a pesticide, legally permitted in food. Tolerance levels are determined by government agencies such as the Environmental Protection Agency (EPA) and the Food and Drug...

Tolerance to a drug in which repeated exposure to the DRUG induces biological effects that reduce the amount of drug that reaches active sites, also known as METABOLIC TOLERANCE. Some drugs have the ability to induce effects that alter BIOAVAILABILITY...

In physiology, tolerance occurs when an organism builds up a resistance to the effects of a substance after repeated exposure. This can occur with environmental substances such as salt or pesticides. It is also commonly encountered in pharmacology (see...