The respiratory system.
The answer will depend on which system the question refers to.
Your question is unclear. Please reword your question.
To answer a question we need a what, who, where, when, why and how. Your question leaves out who and where.
To answer a question we need a what, who, where, when, why and how. Your question leaves out who and where.
This question is short of an example of the system it is talking about.
We can't answer this question. We are not given the system.
It would all depend on the "system" in question.
Please re-phrase the question
Need to know more about the cooling system to answer this question.
What is the scientific name for the skeletal system?
And the question is,