oldfish are ______________ organisms. Their body temperature _____________ when the environmental temperature changes. Therefore, their ____________ rate should be easier to manipulate compared to ____________ organisms.
a. homeothermic; varies; oxygen consumption; poikilothermic.
b. poikilothermic; remains constant; oxygen consumption; endothermic.
c. endothermic; remains constant; metabolic; homeothermic.
d. poikilothermic; varies; metabolic; homeothermic.
e. homeothermic; remains constant; metabolic; poikilothermic.
