Biological Science: An Ecological Approach, 6th ed. (BSCS Green Version). (Illus.) Dubuque, IA: Kendall/Hunt, 1987. 1,104 pp. $25.90. ISBN 0-8403-4181-4. Glossary; Index.
Level of Difficulty: [T] — 10th–12th grade; college bound, science or general studies and non-college bound, general education. [E] — 9th grade (honors students), 10th grade; college bound, science studies or general studies. [B] — 9th–11th grade; college bound, science studies.