Which part of the digestive canal is involved in: (i) absorption of food . (ii) chewing of food . (iii) killing of bacteria . (iv) complete digestion of food . (v) formation of faeces .

Absorption of food is Small intestine.

Chewing of food is Buccal cavity.

Killing of bacteria is Stomach.

Complete digestion of food is Small intestine.

Formation of faeces is large intestine.

Explanation:

Digestion is the process where larger molecules are broken into smaller pieces to release nutrients.

Digestion of food starts from the mouth especially carbohydrates. When it is consumed the buccal cavity is involved in chewing which break it into smaller pieces and the salivary gland release amylase to break it down. It then move to the small intestine where enzymes break food into smaller pieces. The stomach is responsible for killing bacteria because it is an acidic.region. when the food are broken down, the nutrients are then absorbed through small intestine and the undigested food form faeces in the large intestine.