Question

1. which of the following is an accessory organ of digestion?

liver
kidney
spleen
appendix

Explanation:

The liver produces bile which aids in digestion, making it an accessory organ of digestion. Kidneys are for filtration and excretion, spleen is part of the immune - lymphatic system, and appendix has a minor role in immunity and is not a major accessory digestive organ.

Answer:

Liver