Chapter 3. Rise of Metazoans and the Elaboration of Signalling Systems

  1. David A. Lovejoy Associate Professor of Zoology

Published Online: 20 DEC 2005

DOI: 10.1002/0470027878.ch3

Neuroendocrinology: An Integrated Approach

Neuroendocrinology: An Integrated Approach

How to Cite

Lovejoy, D. A. (2005) Rise of Metazoans and the Elaboration of Signalling Systems, in Neuroendocrinology: An Integrated Approach, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/0470027878.ch3

Author Information

  1. University of Toronto, Toronto, Canada

Publication History

  1. Published Online: 20 DEC 2005
  2. Published Print: 8 JUL 2005

ISBN Information

Print ISBN: 9780470844328

Online ISBN: 9780470027875



  • colonialism and multicellularity;
  • Ediacaran biota;
  • hormone pathway elaboration;
  • Cell adhesion recognition proteins;
  • peptide signalling systems;
  • cell-to-cell communication;
  • G-protein receptor activation;
  • wnt pathway;
  • formation of symmetry


This chapter contains sections titled:

  • Introduction

  • Colonialism and multicellularity

  • The elaboration of hormone pathways

  • Nervous systems and rudimentary neuroendocrine systems

  • Increase in genetic complexity and the rise of triploblastic organisms

  • Chapter summary