Biology   Guttman
	Student   Online Learning Center

This chapter examines the unifying features of the animals and presents animal taxonomy and the features of the lower phyla. Emphasizing the adaptive significance of evolved features such as the coelom, the hydrostatic skeleton, muscles, and reproductive and excretory systems, the chapter lays the groundwork for analyzing all animal groups. Embryological similarities and differences are also presented as characters that distinguish certain groups.

Copyright ©1998 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.
For further information about this site contact mhhe_webmaster@mcgraw-hill.com.