Identify which of the following feature(s) are found in the cnidarians but not in the comb jellies.
A. They contain a capsule called a nematocyst.
B. They are free-swimming invertebrates.
C. Much of the body is composed of a jellylike substance called mesoglea.
D. These species can be found in the marine environment.
E. They produce movement by the beating of cilia.
Answer: A
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