
Concept explainers
To explain: The name of the phylum to which humans belong to.
Concept introduction: Phylum Chordata includes the highly advanced organisms that are all deuterostomes with three main characteristic features: notochord, nerve cord, and gill slits.
To explain: The anatomical structure for which the phylum is named.
Concept introduction: Phylum Chordata includes the highly advanced organisms that are all deuterostomes with three main characteristic features: notochord, nerve cord, and gill slits. The notochord is present in the invertebrate–chordate species and appears during the embryonic development of the chordates. It later develops into another anatomical structure depending upon the adaptation of the chordate to the environment.
To explain: The location where the derivative of the anatomical structure is found.
Concept introduction: The notochord is present in the invertebrate–chordate species and appears during the embryonic development of the chordates. It later develops into another anatomical structure depending upon the adaptation of the chordate to the environment.

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Chapter 17 Solutions
Campbell Essential Biology with Physiology (6th Edition)
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