Which of the following statements are true of organs and organ systems? (Read carefully and select all of the correct statements.)

A)An organ is made of several kinds of tissues.
B)The stomach is an organ, but the liver is not.
C)A kidney is an organ, but a bone is not.
D)An organ can never be part of two organ systems.
E)If an organ contains muscle tissue, it will probably move something
F)All of the organs in an organ system have specific functions that contribute to the functioning of the system as a whole.