NEET 2004 · Class 11

Animal Kingdom

The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the Phylum

  1. (A)Annelida
  2. (B)Mollusca
  3. (C)Cnidaria
  4. (D)Echinodermata

The NCERT line that answers it

Verbatim line

The adult echinoderms are radially symmetrical but larvae are bilaterally symmetrical.

Chapter
Animal Kingdom
Section
4.2.9 Phylum – Echinodermata
Page
8
Words matched
11 of 11

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'The adult echinoderms are radially symmetrical but larvae are bilaterally symmetrical,' which directly matches the MCQ's description of bilateral symmetry in young stage and radial symmetry in adult stage, conclusively identifying Phylum Echinodermata.

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