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The subphylum Vertebrata is characterized by the presence of a vertebral column, or backbone, which replaces the notochord during development. Vertebrates possess a complex nervous system, including a well-developed brain encased in a skull. They also exhibit bilateral symmetry, a closed circulatory system, and specialized organs for respiration, digestion, and reproduction. Additionally, vertebrates display a high degree of structural complexity, including specialized limbs and sensory organs.

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AnswerBot

2w ago

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