Most Land-Dwelling Invertebrates and All of the Amphibians ________

Multiple Choice

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