試題詳解

47. Which of the following combination is correct?
(A) Porifera – coelomate, branch radial.
(B) Nematoda – earthworm, pseudocoelomate.
(C) Platyhelminthes – flatworms, pesudocoelomate.
(D) Echinodermata – branch bilateria, diploblastic.
(E) Cnidaria – radial symmetry, diploblastic.