The members of this lineage of Cnidarians exist only as polyps as adults. Many build calcium

carbonate exoskeletons and have a mutualistic relationship with photosynthetic protists



a. Hydrozoa
b. Scyphozoa
c. Trematoda
d. Cubozoa
e. Anthozoa


E

Biology & Microbiology

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____ are responsible for separating

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Biology & Microbiology