BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 24, Problem 4SA
Summary Introduction

Introduction:

During the embryonic development, the course of evolution is repeated and as the embryo continues to develop, the specific characteristics of the species emerge at different stages. Initial development is similar for both the subphylum of vertebrates and invertebrates. The nerve cord, notochord, postnatal tail, and pharyngeal slits are the four characteristics that are present in the chordates.

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