BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
12th Edition
ISBN: 9781264058167
Author: Raven
Publisher: MCG CUSTOM
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Chapter 19, Problem 3A
Summary Introduction

Introduction:

The anterior-posterior (A/P) and dorsal-ventral (D/V) axes are determined by the chemicals called morphogens. Determination of these polarities is extremely vital as the body is then arranged accordingly.

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Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY