A system is a group of many simple parts and processes that influence or interact with each other. The human body is an example of a system.
Doctors study the human body in order to solve problems in the system. Why do doctors often keep track of what enters and leaves the body system?
A.
The body system is too complex to understand.
B.
The body system is affected by its surroundings.
C.
The body system is independent of its surroundings.
D.
The body system does not have boundaries.