Question

State the role of the following in human digestive system : (i) Saliva (ii) Hydrochloric acid (iii) Villi

Answer 1

Answer:

hi..hope it helps

Explanation:

Hydrochloric acid will be the answer.

this acid helps our food to get digested easily..

Answer 2

Answer:

saliva moisture and lubricates the inner lining of mouth cavity and the surface of the tongue to facilitate speaking and swallowing.

hydrochloric acid is present in stomach it mixes the food.

villi it is the inner lining of ileum is produced into a great number of tiny finger like projection.