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Tongue | Stomach | Villi |
| salivary gland | large intestine | mucous |
| liver | alimentary | cellulose |
| oesophagus | small intestine | digestive juices |
| tooth decay | taste buds | salivary amylase |
| maltose | sucrose | anus |
| holozoic nutrition | ingestion | animal nutrition |
1. is a thick muscular organ that is covered with mucous membrane which is attached at the back to the buccal cavity floor and is free at the other end.
2. Starch in the food is first broken down to maltose by the action of .
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