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A great video lecture conducted by experienced biology teacher on 9th class biology chapter 8 topic1 human alimentary canal. Get full understanding or ask any questions.

Human Alimentary Canal, ch 8, lec 12, Human Alimentary Canal - 9th Class Biology

5:08

Pharynx and Esophagus, ch 8, lec 12, Human Alimentary Canal - 9th Class Biology

7:17

Oral Cavity, ch 8, lec 12, Human Alimentary Canal - 9th Class Biology

7:26

Pharynx and Oesophagus, ch 8, lec 12, Human Alimentary Canal - 9th Class Biology

8:43