Concepts in Biology w/bound in OLC card Author:Eldon Enger, Frederick C Ross, David Bailey, Eldon Enger, Frederick Ross, David Bailey Concepts in Biology is a short, student-friendly text organized in a traditional manner. It has very little botany and presents a human-oriented approach to the animal unit. Professors and students appreciate the low cost of this title, and that it is written for students who are not biology majors.