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Question:

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth.

Pharynx→Oesophagus→Crop→Gizzard→Ileum→Colon→Rectum

Pharynx→Oesophagus→Gizzard→Crop→Ileum→Colon→Rectum

Pharynx→Oesophagus→Ileum→Crop→Gizzard→Colon→Rectum

Pharynx→Oesophagus→Gizzard→Ileum→Crop→Colon→Rectum

Solution:

Correct option is A. Pharynx→Oesophagus→Crop→Gizzard→Ileum→Colon→Rectum
The correct sequence of organs in the alimentary canal of cockroach starting from mouth is:
Pharynx→Oesophagus→Crop→Gizzard→Ileum→Colon→Rectum.
So, the correct answer is 'Pharynx→Oesophagus→Crop→Gizzard→Ileum→Colon→Rectum'