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circulatory system
Your question is not quite clear, but if you are asking "does the circulatory system help maintain body temperature?" then I would the answer is yes. It moves blood throughout the body which regulates the body temperature. Doing so also supplies supplies oxygen and nutrients for the cells in your body.
The cardiovascular or circulatory system.
circulatory system (blood)
The respiratory system, which is made up of the heart, lungs and blood vessels.
circulatory system transports blood Digestive system breaks it out of food
The circulatory system not only transports oxygen to and CO2 from cells, but also transports nutrients and hormones around the body.
helps protect the body against bacteria
The circulatory system.
It transports materials
The most obvious answer would be the Circulatory system; however, the Lymph system also transports material throughout the body, it could be compared to the sewer system in a city. If this is for homework though, the right answer would most assuredly be Circulatory system.
The Circulatory System.(Cardiovascular System)