Answer:
cellular resperation; ATP;energy;digestive system;circulartory ;energy; glucose; water; carbon dioxyide ; mitocondria
Explanation:
Heat is a form of energy.
Viruses are made up of DNA
The correct answer to this could be numerous words. The most broad term that would fit would be the Cosmos. If you are referring to more specific then you might be saying things such as Ionosphere. That is where Sputnik 1, the first satellite, was launched.