If respiration in a small mammal were studied at both room temperature 21?

Answer 1

Mammals maintain a set body temperature (except during hibernation). The heat flux in the cooler room would be higher. To maintain the body tempperature with the higher heat flix, the consumption of calories would be higher and the respiration higher to maintain the conversion of food to CO2. The following would have to be included in the calculation to quantify heat flux: * Radiant energy losses

* Convective heat loss * Evaporative heat loss * Heat loss to breathing, feces and urine * Changes in insulation (fluffing of fur in the two cases) Consideration would also have to be made for changes in room temperature or room temperature control including air movement.

Answer 2

At room temperature (21-23°C), a small mammal will exhibit normal respiration rates to meet its metabolic needs. As temperature increases, the small mammal may increase respiration to regulate its internal body temperature. Conversely, at lower temperatures, metabolic processes may slow down, leading to a reduction in respiration rate.

Answer 3

Depends on more than temperature: cold or warm blooded mammals, and/or winter-sleeping mammals

Answer 4

Mammals respirate at a higher rate in colder temperatures because they are endothermic and must generate heat from within to maintain homeostasis.