ANATOMY

Detailed explanation-1: -(b)Ingestion → Digestion → Assimilation → Absorption → Egestion.

Detailed explanation-2: -There are four stages in the digestive process: intake, chemical and mechanical degradation of food, nutrients’ absorption, and removal of indigestible food. Mechanical degradation of food is done by mouth, while chemical degradation is performed by stomach.

Detailed explanation-3: -Figure 2: The digestive processes are ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and defecation.

Detailed explanation-4: -The digestive processes are ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and defecation.

Detailed explanation-5: -Animal digestion begins in the mouth, then moves through the pharynx, into the esophagus, and then into the stomach and small intestine.