Which one of the following groups of three animals each is correctly matched with one characteristic morphological feature?

Question

Centipede, Prawn, Sea urchin - Jointed appendages

Cockroach, Locust, Taenia - Metameric segmentation

Scorpion, Spider, Cockroach - Ventral solid nerve cord

Liverfluke, Sea anemone, Sea cucumber - Bilateral symmetry

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