Nematodes are classified separately from the coelomate groups because
A) they lack a body cavity.
B) the body cavity forms within the mesoderm.
C) the body cavity forms between the endoderm and the mesoderm.
D) they have a collagenous cuticle.
E) of their extensive adoption of a parasitic habit.

Question

Quizplus · Accepted Answer

Nematodes are classified separately from the coelomate groups because their body cavity, or pseudocoelom, forms between the endoderm and the mesoderm, rather than entirely within the mesoderm as in true coelomates.

Nematodes Are Classified Separately from the Coelomate Groups Because