Question

which of the following is not considered to be an accessory organ to the human digestive system?
a esophagus
b gall bladder
c pancreas
d liver
e salivary glands
question 40
an incomplete digestive system is characterized by having ____.
a no digestive enzymes
b no elimination of wastes
c only one opening
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questions filter (40)

Explanation:

For the first question: Accessory organs of the digestive system assist digestion but are not part of the alimentary canal. The esophagus is part of the alimentary canal (food passage), while gall bladder, pancreas, liver, and salivary glands are accessory organs. For the second question: An incomplete digestive system has only one opening (mouth/anus combined), unlike a complete system with two openings. Options A, B are incorrect (enzymes and waste elimination exist), so C is correct.

Answer:

First question: A. Esophagus
Second question: C. only one opening