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Per NCERT, which animal phylum shows TISSUE-LEVEL organisation, has tentacles for capturing prey, but only a SINGLE opening serving both food intake and waste — e.g. Hydra, jellyfish, corals?
AAnnelida
BCnidaria
CEchinodermata
DPorifera
Answer & Solution
Correct answer: B. Cnidaria
Per NCERT §12.6.5, Cnidaria have tissues + tentacles + a single body opening. Porifera lack tissues; Annelida have separate mouth + anus.
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