The appropriate word in the place of a question mark. Introduction: The central nervous system in vertebrates is divided into the brain and the spinal cord. The central nervous system contains neural tissue layers near a central cavity which is fluid-filled and lined with epithelium in all vertebrates. The central nervous system also consists of supportive glial cells as well as neurons.

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Chapter 9, Problem 25RQ

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To determine: The appropriate word in the place of a question mark.

Introduction: The central nervous system in vertebrates is divided into the brain and the spinal cord. The central nervous system contains neural tissue layers near a central cavity which is fluid-filled and lined with epithelium in all vertebrates. The central nervous system also consists of supportive glial cells as well as neurons.

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