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The process of conversion of complex food substances into simple absorbable forms _________(a) Digestion(b) Excretion(c) Respiration(d) CirculationThe question was asked during an internship interview.This intriguing question originated from Digestive System in portion Digestion and Absorption of Biology – Class 11

Answer»

Correct option is (a) Digestion

Best explanation: Digestion is the process of conversion of food substrates into digestible form. Excretion is the process of release of undigested and REQUIRED wastes of the body. Respiration is the process of exchange of O2 from ATMOSPHERE with CO2 produced by the cells. CIRCULATION is the process of transport of CONNECTIVE tissues blood in the body and the ELEMENTS it carries.



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