Question

Which of the following groups have one or more animals who are not pseudocoelomate?

• A. Turbellaria and Taenia
• B. Enterobius and Wuchereria
• C. Ancylostoma and Dracunculus
• D. Ascaris and Ancylostoma

Answer 1

The correct option is A Turbellaria and Taenia

Animals in which the body cavity is not completely lined with mesoderm are called pseudocoelomates. Nematodes (roundworms) and rotifers are pseudocoelomates. Enterobius (roundworm), Wuchereria, Ancylostoma (hookworm), Dracunculus, and Ancylostoma (hookworm) are nematodes with pseudocoelom. Turbellaria and Taenia belong to phylum Platyhelminthes which are triploblastic with a solid body and no body cavity i.e. they are acoelomates.

Thus, the correct answer is option A.