Which statement best describes why an organism is less active when the temperature is too low?
A. The organisms would be less active because it’s enzymes are denatured
B. The organisms activity is unaffected when temperatures are low because they can just adjust to it
C. The organisms would be less active because everything loses energy when it is too cold

The organisms activity is unaffected when temperatures are low because they can just adjust to it

Explanation:

Different organisms adapt differently to survive and thrive in various atmospheric conditions including extreme weather conditions.

Organisms undergo adaptation of thermoregulation to regulate their body temperature  in accordance with the temperature of its surrounding. Accordingly, organisms are classified as endothermic or ectothermic. Thermoregulation process helps the organism to maintain body homeostasis.

Human body maintains a constant body temperature even when the external temperature is too high or too low.

When the temperature is less, heat loss through evaporation is less and hence less energy is consumed.

Various animals undergo adaptations like hibernation or dormancy to conserve their limited energy sources during low temperature periods.

substitution is the answer in this case