Question

Answer the following questions.
1.
Draw a neat, well labelled diagram of the human digestive system.
2.
Justify the following statements:
(a) Crow is an omnivore.
(b) It is said that the mode of nutrition, in human beings and Amoeba, is quite
similar.
Give reasons for the following:
(a) Ingestion of food is difficult without teeth.
(b) If we chew rice, or bread, for a few minutes, it starts tasting sweet.
(c) Bacteria are present in the caecum of ruminants.​

Answer 1

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