Biology

BioMedCentral is recognized as a major force in the emergence of open access publishing in the life sciences. This gateway to biomedical information includes both open access and subscription journals, all peer-reviewed.

Test your knowledge of animal phyla, view the classic paramecium, and identify the protists in the pond water.

Developed and maintained at the Institute of Biochemistry at the University of Cologne, BRENDA is a database of enzyme functional data for approximately 3,500 enzymes.

Contains illustrations, videos, and a history of DNA and the human genome. Site was last updated in 2003, but still contains helpful visuals and historic information.

Science.gov searches over 38 databases and 1,950 selected websites, offering 200 million pages of authoritative U.S. government science information, including research and development results.