Among protostomes, which morphological trait has shown the most variation?
A) type of symmetry (bilateral versus radial versus none)
B) type of body cavity (coelom versus pseudocoelom versus no coelom)
C) number of embryonic tissue types (diploblasty versus triploblasty)
D) type of development (protostome versus deuterostome)

Question

Quizplus · Accepted Answer

Within the protostomes phylum, the type of body cavity (coelom versus pseudocoelom versus no coelom) has shown the most variation. This trait can vary even within different classes or orders within the same phylum.

Among Protostomes, Which Morphological Trait Has Shown the Most Variation