Lophotrochozoans are defined by all of the following features except
A) having two embryonic germ layers that develop into their body systems.
B) having an aquatic lifestyle.
C) being bilaterally symmetrical during some stage of their development.
D) using a lophophore as a feeding apparatus.
E) they are protostomes.

Question

Quizplus · Accepted Answer

Lophotrochozoans are characterized by having three embryonic germ layers (ectoderm, mesoderm, and endoderm), not two. The presence of three germ layers is a feature of triploblastic organisms, which includes lophotrochozoans.

Lophotrochozoans Are Defined by All of the Following Features Except