First slide

Frogs

Question

Identify the correct sequence of the parts in the alimentary canal of frog.

Easy

A

Stomach → oesophagus → duodenum → ileum → rectum.
B

Oesophagus → stomach → duodenum → ileum → rectum.
C

Oesophagus → stomach → ileum → duodenum → rectum.
D

Oesophagus → stomach → duodenum → rectum → ileum.

Solution

The digestive system consists of alimentary canal and digestive glands. The mouth opens into the buccal cavity that leads to the pharynx which in turn opens into oesophagus. Oesophagus is a short tube that opens into the stomach which in turn continues as the intestine (duodenum and ileum), rectum and finally opens outside by the cloaca.

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