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Question
In which of these following phyla, while the adult shows radial symmetry, the larva shows bilateral symmetry?
In which of these following phyla, while the adult shows radial symmetry, the larva shows bilateral symmetry?
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Solution
The correct option is D Echinoderms
Echinoderms are a phylum of marine animals. The adults are recognizable by their radial symmetry like starfish, sea urchins, sand dollars, and sea cucumbers. On the other hand, the larva of echinoderms has bilateral symmetry which is lost during metamorphosis when their bodies are re-organized and develop the character of radial symmetry of the echinoderm.
So, the correct answer is option D.
Echinoderms are a phylum of marine animals. The adults are recognizable by their radial symmetry like starfish, sea urchins, sand dollars, and sea cucumbers. On the other hand, the larva of echinoderms has bilateral symmetry which is lost during metamorphosis when their bodies are re-organized and develop the character of radial symmetry of the echinoderm.
So, the correct answer is option D.
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