Most land-dwelling invertebrates and all of the amphibians ________.
A) are ectothermic organisms with variable body temperatures
B) alter their metabolic rates to maintain a constant body temperature of 37°C
C) are endotherms but become thermo-conformers when they are in water
D) become more active when environmental temperatures drop below 15°C

Question

Quizplus · Accepted Answer

Most land-dwelling invertebrates and all amphibians are ectothermic organisms, meaning they rely on external sources of heat to regulate their body temperature. They cannot alter their metabolic rates to maintain a constant body temperature of 37°C like endotherms (birds and mammals). Additionally, there is no indication that they become more active when environmental temperatures drop below 15°C.

Most Land-Dwelling Invertebrates and All of the Amphibians ________