Original: Microbial mats and less complex types of biofilm are found at temperature ranges from â "40 Â C to +120 Â C, because variations in pressure affect the temperatures at which water remains liquid.
Simplified: Microbial mats grow mostly on submerged or moist surfaces but a few survive in deserts. They colonize environments ranging in temperature from â "40 Â C to +120 Â C/O. A few are endosymbionts of animals.