Q1. The process of taking food into the digestive system is........? (RRB SSNE 2015) A. Digestion B. Ingestion C. Propulsion D. Elimination Answer is B) 1) Ingestion:- Taking food into the digestive system 2) Digestion:- Chemical and mechanical process making food easier to digest and absorb nutrients in the blood 3) Propulsion:- it is a mechanical process to move food forward via peristaltic contraction 4) Elimination:- Removal and control of waste Products and by-products of various chemical processes. Explanation