AP BIOLOGY

Detailed explanation-1: -Evaporation removes heat and can act as a cooling mechanism. For instance, many mammals can activate mechanisms like sweating and panting to increase evaporative cooling in response to high body temperature.

Detailed explanation-2: -Many animals get rid of excess body heat by breathing rapidly-by panting. Almost everyone has seen dogs do this. Have you ever seen birds walking around in summer with their beaks open? They’re panting.

Detailed explanation-3: -Sweating: Your sweat glands release sweat, which cools your skin as it evaporates. This helps lower your internal temperature. Vasodilatation: The blood vessels under your skin get wider. This increases blood flow to your skin where it is cooler-away from your warm inner body.

Detailed explanation-4: -ectotherm, any so-called cold-blooded animal-that is, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface. The ectotherms include the fishes, amphibians, reptiles, and invertebrates.

Detailed explanation-5: -The primary physiologic responses to cold exposure are brown adipose tissue (BAT) thermogenesis and skeletal muscle shivering, which generate heat, and the constriction of blood vessels (vasoconstriction), which prevents heat loss.