4. Following statements describe the five steps in animal nutrition. Read each statement and give one word for each statement. (a) Transportation of absorbed food to different parts of body and their utilization.
(b) Breaking of complex food substances into simpler and soluble substances.
(c) Removal of undigested and unabsorbed solid residues of food from the body.
(d) Taking food into the body.
(e) Transport of digested and soluble food from the intestine to blood vessels