The Biology Corner is a resource site for biology and science teachers. It contains a variety of lessons, quizzes, labs, web quests, and information on science topics. You can find lessons related to biology topics in the links listed under "topics" on the sidebar. Topics include: Ecology, Genetics, Anatomy, Cells, Scientific Method, and Evolution. I do not at this time have answer keys for the worksheets posted, as students use this site to access their own homework and assignments.
Exploring Bioethics-developed with the NIH Department of Bioethics and written by Education Development Center, Inc.-supports high school biology teachers in raising and addressing bioethical issues with their students and engages students in rigorous thinking and discussions. By providing conceptual guidelines that promote careful thinking about difficult cases, it stresses the importance of presenting thoughtful and relevant reasons for considered positions on ethical issues.
The purpose of zeroBio is to provide students with resources for their science courses. These resources come in the form of worksheets, quizzes, games, animations, and more. While zeroBio is primarily intended for students at Central Secondary School, I hope this website will be helpful to anybody interested in high school science.
I saw this back in Dec 2010, but couldn't run it on my Mac due to browser issues. I tried it again in March 2011 and found that it worked with Google Chrome, but still not Safari:( Very cool tool!