1) mammals are ectothermic, meaning they rely on external sources to regulate their body temperature. a true…

1) mammals are ectothermic, meaning they rely on external sources to regulate their body temperature. a true b false
Answer
Brief Explanations:
Mammals are endothermic, generating their own body - heat to regulate temperature, not ectothermic which rely on external heat sources.
Answer:
B. False