Lophotrochozoans differ from ecdysozoans in that
A)lophotrochozoans undergo protostome development,while ecdysozoans undergo deuterostome development.
B)lophotrochozoans exhibit segmentation,while ecdysozoans do not.
C)lophotrochozoans have pseudocoeloms,while ecdysozoans have coeloms.
D)lophotrochozoans grow their skeletons continuously,while ecdysozoans shed their external skeletons to grow.

Question

Quizplus · Accepted Answer

Lophotrochozoans and ecdysozoans differ in their methods of growth and support. Lophotrochozoans grow their skeletons continuously, while ecdysozoans shed their external skeletons to grow. This is a key difference between the two groups. The other choices are incorrect; lophotrochozoans and ecdysozoans can both undergo protostome development, segmentation is not unique to lophotrochozoans, and coelom type varies within both groups.

Lophotrochozoans Differ from Ecdysozoans in That