Final answer:
Vasodilation of blood vessels in response to temperature is an example of a physiological (acclimatization) adaptation to climate. It is one way the body maintains homeostasis by adjusting blood flow to regulate temperature.
Step-by-step explanation:
An example of a physiological (acclimatization) adaptation to climate is vasodilation of blood vessels in response to temperature. This physiological change helps in thermoregulation during situations such as strenuous physical activities or when exposed to high external temperatures. The skin works in conjunction with the cardiovascular system through vasodilation—in which blood vessels widen to increase blood flow to the skin's surface, allowing more heat to escape—and through vasoconstriction—in which vessels narrow to reduce blood flow and conserve heat in response to low temperatures.
Other physiological adaptations include the change in the number of red blood cells at high altitudes to ensure adequate oxygen delivery to tissues, and seasonal changes in animal coats for maintaining body temperature. These adjustments are part of homeostasis, which is the ability of an organism to maintain internal equilibrium by adjusting its physiological processes.