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a) Draw a well labelled diagram of human alimentary canal, and label the following parts :

 (i) Liver

 (ii) Pancreas

 (iii) Small intestine

 (iv) Large intestine.

(b) What is peristaltic movement ?

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(a) (i) , (ii) , (iii) , (iv).


(b) Peristaltic movement : The lining of alimentary canal has muscles that contract rhythmically in order to push the food forward. These are peristaltic movements.  
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