A lab observation notes that a ribbon-like intestinal parasite has proglottids and lacks a digestive tract. The observation points to:

Correct Answer: D

Taenia

Taenia is a tapeworm belonging to class Cestoda. Cestodes absorb nutrients through their body surface and have a chain of proglottids for reproduction. This MCQ belongs to the Cestoda topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.