A System is Best Defined As

Question

A system is best defined as
A) a group of different types of cells working together to perform a function
B) a group of different tissues working together to perform a function
C) a group of organs working together to perform a function
D) none of the above

Accepted Answer

A system is defined as a group of organs working together to perform a function. Option A is incorrect because a group of different types of cells working together is called tissue not a system. Option B is incorrect because a group of tissues working together is called an organ not a system. Option D is incorrect because one of the choices must be correct.