Cnidarians are described as 'diploblastic' because their body develops from which two germ layers?
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Correct answer: Ectoderm and Endoderm
Cnidarians lack a true mesoderm, possessing only an outer epidermis (from ectoderm) and an inner gastrodermis (from endoderm). These layers are separated by a non-cellular jelly-like layer called mesoglea.
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