The Biology Project
One of the flagship bio-related sites online today. The biology project is one of the most popular interactive resources for learning biology and life science.

Action Bioscience
Bioscience issues in biodiversity, environment, genomics, biotechnology, evolution, new frontiers in the sciences, and education. Includes peer-reviewed articles, class lessons, and other resources.

Cells Alive!
This website includes film and computer-enhanced images of living cells and organisms for education and medical research. There are also interesting animations of cells.

Heredity
Interactive site from the University of Utah that gives an excellent overview of heredity.

Longwood High School's Biology Pages
Excellent resource for many topics in biology.

Science Daily News
Source for the latest news in science, health and medicine.

Nature Puzzles
Puzzles and Fun by PBS

Extremophiles!
For you extreme extremophile enthusiasts.

Practice Punnett Squares