Answer: In the taxonomy of Linnaeus there are three kingdoms, divided into classes, and they, in turn, into orders, genera (singular: genus), and species (singular: species), with an additional rank lower than species. a term for rank-based classification of organisms, in general.
That would be the exosphere!
Secretions from the liver and the pancreas get mixed with food here. By the time food leaves this organ, the process of digestion is complete. We are talking about A) duodenum.