AP BIOLOGY

Detailed explanation-1: -Examples of cold-blooded animals are reptiles, fish, etc. Warm-blooded animals are defined as animals that can regulate and maintain constant internal body temperature. They can survive in any temperature range as they can adapt to it easily. Mammals are the best examples of warm-blooded animals.

Detailed explanation-2: -All mammals and birds are capable of generating this internal heat and are classed as homoiotherms (ho-MOY-ah-therms), or warm-blooded animals. Normal temperatures for mammals range from 97° F to 104° F. Most birds have a normal temperature between 106° F and 109° F.

Detailed explanation-3: -All mammals are warm-blooded or “endothermic”, meaning they can maintain a constant internal temperature. In contrast, cold-blooded animals like lizards cannot, and must sit in the sun to warm up or hide in the shade to cool down.

Detailed explanation-4: -Cold-blooded animals, like reptiles, amphibians, and fish, become hotter and colder, depending on the the temperature outside. For example, when the sun sets at night, their bodies are cooler because it is less warm outside.

Detailed explanation-5: -Like mammals, birds are warm-blooded, meaning that their body temperature stays the same no matter how hot or cold it is outside. This characteristic allows birds to maintain the high levels of energy needed for flying.