What Criteria Differentiates a Pseudocoelomate Versus a Coelomate Animal

Question

What criteria differentiates a pseudocoelomate versus a coelomate animal?
A)A pseudocoelomate animal is diploblastic and the body cavity is partially lined by endoderm.
B)A pseudocoelomate animal is diploblastic and the body cavity is completely lined by mesoderm.
C)A coelomate animal is triploblastic and the body cavity is completely lined by mesoderm.
D)A coelomate animal is triploblastic and the body cavity is completely lined by endoderm.
E)A coelomate animal is diploblastic and the body cavity is completely lined by mesoderm.

Accepted Answer

A coelomate animal is triploblastic, meaning it has three germ layers (endoderm, mesoderm, and ectoderm), and its body cavity is completely lined by mesoderm. On the other hand, a pseudocoelomate animal has a body cavity that is only partially lined by mesoderm and partially lined by endoderm, and it may be diploblastic or triploblastic.