Final answer:
Blood circulation in warm-blooded animals is an example of the circulatory system, which helps maintain body temperature through processes like vasodilation and vasoconstriction.
Step-by-step explanation:
Blood circulation in warm-blooded animals is an example of the circulatory system. In warm-blooded animals like mammals and birds, the circulatory system helps to maintain body temperature. It does this through processes such as vasodilation and vasoconstriction to regulate blood flow and heat transfer. Additionally, some animals have adaptations like countercurrent heat exchange to prevent the cold venous blood from cooling their internal organs.