Which of the following correctly lists animals in order of increasing complexity?
A. Diploblast, triploblast with complete coelom, triploblast with incomplete coelom.
B. Triploblast with coelom, triploblast with no coelom, diploblast with coelom.
C. Diploblast, triploblast with incomplete coelom, triploblast with complete coelom.
D. Diploblast with coelom, triploblast, triploblast with coelom.

Q&A Education