Identify an organism that has a well-defined muscular pharynx.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. Ascaris
Ascaris, a genus of parasitic roundworms (nematodes), also has a well-defined muscular pharynx. The pharynx in Ascaris is muscular and functions in the ingestion of food, pumping it from the mouth into the intestines for digestion. This adaptation is crucial for their parasitic lifestyle.