What phylum contains sea jellies?
a. Porifera
b. Cnidaria
c. Echinodermata
d. Platyhelminthes
ANS: B
Cnidarians are carnivorous animals that have stinging cells. These are called cnidoblasts. The sea
jellies are in the medusa stage of cnidarians. Information can be found in the section Invertebrates Are
the Most Successful and Abundant Animals.
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