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Key Characteristics of Phylum Chordata: Notochord, Dorsal Nerve Cord, and More

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Phylum Chordata encompasses animals that exhibit key characteristics such as a notochord, dorsal nerve cord, and pharyngeal pouches. The notochord is a flexible rod of specialized cells located dorsally and often replaced by the vertebral column in vertebrates after the embryonic stage. The dorsal nerve cord, which runs above the notochord, is a critical component of the nervous system. Additionally, pharyngeal pouches are present during embryonic development, serving various functions across different chordate species, highlighting the evolutionary significance of these features.

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Key Characteristics of Phylum Chordata: Notochord, Dorsal Nerve Cord, and More

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