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A mesotherm (from Greek μέσος mesos "intermediate" and thermē "heat") is a type of animal with a thermoregulatory strategy intermediate to cold-blooded ectotherms and warm-blooded endotherms. Definition
Definition [ edit ] Under the original Köppen climate classification , all places with an average temperature in their coldest month that is colder than 18 °C (64 °F), but warmer than −3 °C (27 °F), are said to have a mesothermal climate.
An endotherm (from Greek ἔνδον endon "within" and θέρμη thermē "heat") is an organism that maintains its body at a metabolically favorable temperature, largely by the use of heat released by its internal bodily functions instead of relying almost purely on ambient heat.
Thermographic image: a cold-blooded snake is shown eating a warm-blooded mouse. Warm-blooded is an informal term referring to animal species whose bodies maintain a temperature higher than that of their environment.
The precise physiological mechanism enabling plant thermotropism is not yet understood. [4] It has been noted that one of the earliest physiological responses by plants to cooling is an influx of calcium ions from the cell walls into the cytosol, which increases calcium ion concentration in the intracellular space.
Mesquite is a common name for some plants in the genus Prosopis and Neltuma, both of which contain over 40 species of small leguminous trees. They are native to dry areas in the Americas. They have extremely long roots to seek water from very far under ground.
Plants that have an underground storage organ are called geophytes in the Raunkiær plant life-form classification system. [ 2 ] [ 3 ] Storage organs often, but not always, act as perennating organs which enable plants to survive adverse conditions (such as cold, excessive heat, lack of light or drought).
An important type of plant that resides within mesic habitats is the forb, which provides a strong source of food for many species, especially avian species such as the ruffed grouse. [5] These habitats play an important role in the distribution abundance of sage grouse , influencing where they choose their breeding grounds, or leks .