Which systems assist in regulating body temperature?

Circulatory and Excretory Systems

Hypothalamus gland, sweat gland and skin all work together to assist regulation of the body temperature.  It is also called as integumentary system.

Sweat gland releases sweat through our skin to maintain the body temperature. Our body releases sweat in hot temperature and by the process of evaporation the water gets evaporated and the area is cooled down.  

Skin provides the platform for sweat to get evaporated. This all process is controlled by hypothalamus gland.

d ) power this is the right answer

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df