AP BIOLOGY

Detailed explanation-1: -Endothermic (warm-blooded) Animals, including birds and mammals, maintain a nearly constant internal temperature and do not change with the temperature of the environment. When the outside temperature is too hot, an endothermic animal can cool off by sweating, panting, changing position, or changing location.

Detailed explanation-2: -That’s because cooling your body via sweating relies on a principle of physics called “heat of vaporization.” It takes energy to evaporate sweat off of your skin, and that energy is heat. As your excess body heat is used to convert beads of sweat into vapor, you start to cool down.

Detailed explanation-3: -Endotherms regulate their core body temperature by adjusting metabolic heat production and insulation. Endothermic body temperatures are therefore relatively stable compared to external temperatures.

Detailed explanation-4: -Endotherms and ectotherms Endotherms generate most of the heat they need internally. When it’s cold out, they increase metabolic heat production to keep their body temperature constant. Because of this, the internal body temperature of an endotherm is more or less independent of the temperature of the environment.