Which of the Following Combinations of Phylum and Description Is

Question

Which of the following combinations of phylum and description is incorrect?
A)Echinodermata-bilateral symmetry as a larva, coelom present
B)Nematoda-roundworms, pseudocoelomate
C)Cnidaria-radial symmetry, polyp and medusa body forms
D)Platyhelminthes-flatworms, gastrovascular cavity, acoelomate
E)Porifera-gastrovascular cavity, coelom present

Accepted Answer

Porifera do not have a true body cavity, such as a gastrovascular cavity or a coelom. Rather, they have an internal system of canals and chambers called a spongocoel. Therefore, the combination of Porifera and "gastrovascular cavity, coelom present" is incorrect.