The alimentary canal of a nematode is comprised of…

✅Explanation: The alimentary canal of a nematode is a complete digestive system that runs as a tube from the mouth (anterior) to the anus (posterior). It is divided into three main regions:

• Stomodeum:
Function: Responsible for ingestion and initial breakdown of food.
Components: Mouth, buccal cavity (mouth cavity), and pharynx (esophagus).
Lining: Lined with cuticle (a tough, protective layer).

• Mesenteron (Intestine):
Function: Major site of digestion and absorption of nutrients.
Lining: A single layer of epithelial cells, not lined with cuticle.

• Proctodeum:
Function: Responsible for the formation and expulsion of feces.
Components: Rectum and anus.
Lining: Lined with cuticle.