This unit plan guides students to design a working model of part of the human digestive system that can be built in the classroom.
The human digestive system consists of a long muscular tube and several accessory organs such as the salivary glands, pancreas and gall bladder. It is responsible...
The human digestive system is responsible for the processes of ingestion and digestion, absorption of digestion products and the elimination of undigested materials. The system itself...
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