Draw a labelled diagram of alimentary canal of a cockroach.

Explanation

### Step-by-Step Solution to Draw the Alimentary Canal of a Cockroach

1. **Start with the Outline**: Begin by drawing the basic outline of the alimentary canal. It should be a long, tubular structure that curves slightly.

2. **Draw the Pharynx**: At the beginning of the canal, draw a small bulbous structure to represent the pharynx. This is where the food enters after being consumed.

3. **Add the Esophagus**: From the pharynx, extend a narrow tube downwards to represent the esophagus. This tube connects the pharynx to the crop.

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