What term is used to describe medium temperature loving microorganisms?

The term that describes medium temperature-loving microorganisms is "mesophilic." Mesophilic organisms thrive best in moderate temperature ranges, typically between 20°C and 45°C (68°F and 113°F). This characteristic allows mesophiles to be commonly found in various environments, including soil and the human body, where temperatures are conducive to their growth.

In contrast, thermophilic microorganisms prefer higher temperatures, generally above 45°C (113°F), and are often found in hot environments such as compost heaps or hot springs. Psychrophilic organisms thrive in cold conditions, typically at temperatures below 20°C (68°F), often found in polar regions or deep ocean waters. Oligotrophic refers to environments that are nutrient-poor, not temperature-based, highlighting a different aspect of microbial classification. Therefore, mesophilic accurately captures the definition needed for microorganisms that thrive in moderate temperatures.