Esophagus does NOT perform which of the following?
Correct option is C, Digestion. In Digestive System, the accurate description is Digestion, and that is what you should commit to memory. Keep the definition tight and the role clear — the stem is asking for the statement that does not fit the usual rule, and Digestion is that exception in the context of Digestive System. Then Digestion is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Digestion.
Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.