01228cam a2200229Ja 4500020002200000020002500022020002200047020002500069020001500094020001800109020001500127020001800142040000800160082002600168100002100194245001400215250001200229260003800241300007500279520063100354650001300985  a0697340791 (case)  a9780697340795 (case)  a0697340805 (pbk.)  a9780697340801 (pbk.)  a0071154027  a9780071154024  a0072290218  a9780072290219  cDLC00a570 WCB 1998 A081 Or.1 aMader, Sylvia S.10aBiology /  a6th ed.  aBoston :bWCB/McGraw-Hill,cc1998  a1 v. (various pagings) :bill. (some col.), maps (some col.) ;c29 cm.  a[This text] covers the concepts and principles of biology from the structure and function of the cell to the organization of the biosphere. It draws upon the entire world of living things to bring out an evolutionary theme that is introduced from the start. The concept of evolution is necessary to understanding the unity and diversity of life and serves as a background for the study of ecological principles. Four chapters are devoted to reviewing the ecological principles that explain how the natural world works.  Frequent references are made as to how humans impact the environment.  Ecological problems are considered. 0aBiology.