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Question
In which of these following phyla given as the adult shows radial symmetry, the larva shows bilateral symmetry?
In which of these following phyla given as the adult shows radial symmetry, the larva shows bilateral symmetry?
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Solution
The correct option is B Echinodermata
- Echinodermata has radial symmetry as the have a triploblastic body structure which includes a central canal and five arms which help in locomotion.
- The larvae of echinoderms have bilateral symmetry but this is lost during metamorphosis.
- During the metamorphosis, their bodies are reorganized and develop the character of radial symmetry of the echinoderm, typically pentamers. So, the correct answer is option D.
- Echinodermata has radial symmetry as the have a triploblastic body structure which includes a central canal and five arms which help in locomotion.
- The larvae of echinoderms have bilateral symmetry but this is lost during metamorphosis.
- During the metamorphosis, their bodies are reorganized and develop the character of radial symmetry of the echinoderm, typically pentamers. So, the correct answer is option D.
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