Biology: A Research Guide

Alzheimer's, breast cancer, cystic fibrosis and muscular dystrophy are a few of the topics covered in this subject specific encyclopedia. Provides extensive bibliography and web sites of interest.

Defines key terms. Includes most of the topics listed above. Provides extensive bibliography and web sites of interest.

Excellent articles on topics such as acid rain, deforestation, desertification, ecotoxicology, as well as specific ecosystems such as marine ecosystem, etc.

Articles study the diverse impacts that humans have on their environment as well as natural environmental changes.