How do a frog heart and a human heart differ in their responses to temperature? Why?
Frogs are ectotherms. Their temperature is similar to their surroundings unless they are basking in the sun and absorbing heat. The hearts of ectotherms beat faster when their body temperature increases. The hearts of human beings beat at the same rate regardless of ambient temperture since the human body maintains a more or less constant body temperature inside the body.