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

  1. A
    Cockroach, Locust, Taenia — Metameric segmentation
  2. B
    Liver fluke, Sea anemone, Sea cucumber — Bilateral symmetry
  3. C
    Centipede, Prawn, Sea urchin — Jointed appendages
  4. D
    Scorpion, Spider, Cockroach — Ventral solid central nervous system

Solution & Step-by-step Explanation

Scorpion, Spider, and Cockroach are all Arthropods. Non-chordates typically possess a ventral, solid, and double central nervous system.Taenia (Platyhelminthes) is not metamerically segmented.Sea anemone (Cnidaria) shows radial symmetry.Sea urchin (Echinodermata) does not have jointed appendages.

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Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
A
Cockroach, Locust, Taenia — Metameric segmentation
B
Liver fluke, Sea anemone, Sea cucumber — Bilateral symmetry
C
Centipede, Prawn, Sea urchin — Jointed appendages
D
Scorpion, Spider, Cockroach — Ventral solid central nervous system

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Animal KingdomClassificationMorphology

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