Concept explainers
To determine: The evidence of chordate characteristics in the human embryo.
Introduction: All humans, animals, and birds are chordates. A notochord, a dorsal hollow nerve cord, a postanal tail, and pharynx with slits are some of the common features shared by all the chordates at some stage of their development. Chordates are called so because of the presence of notochord, which provides the chordates skeletal support.
To determine: Whether several chordate organs perform the same functions in humans and amphioxus or not.
Introduction: All humans, animals, and birds are chordates. A notochord, a dorsal hollow nerve cord, a postanal tail, and pharynx with slits are some of the common features shared by all the chordates at some stage of their development. Chordates are called so because of the presence of notochord, which provides the chordates skeletal support.
To explain: The reason for persistence of chordate characteristics in humans.
Introduction: All humans, animals, and birds are chordates. A notochord, a dorsal hollow nerve cord, a postanal tail, and pharynx with slits are some of the common features shared by all the chordates at some stage of their development. Chordates are called so because of the presence of notochord, which provides the chordates skeletal support.
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Biology (MindTap Course List)
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