Suppose a particular species of fish does not generate its own body heat, yet it lives in a lake which the lake temperature remains relatively constant. These fish would be both
A) poikilotherms and endotherms
B) homeotherms and ectotherms
C) poikilotherms and ectotherms
D) homeotherms and endotherms
Answer: B) homeotherms and ectotherms