All of the following are organs of the digestive system except the___________.
The organs of the conducting zone of the respiratory system include all the following EXCEPT:
Read the following statements about the 'digestive system' and identify the incorrect one(s) :
I.The human digestive system includes the alimentary canal and digestive glands.
II.Amoeba has a simple digestive system.
III.As the functions in an organism increase, the complexity of the digestive system decreases.
IV. The digestive system is the same in all organisms