When groups of organs work together to perform the same function, they are referred to as an organ system.
(they; are referred; as an organ system; T:When groups of organs work together to perform the same function) (groups of organs; work together; to perform the same function) Context(groups of organs work together,List([5, 35))):(groups of organs; work together to perform; the same function)
groups of organs work together,List([5, 35))
they groups of organs groups of organs
are referred work together work together to perform
as an organ system T:When groups of organs work together to perform the same function
to perform the same function
the same function