http://www.purchon.com/biology/index.html -
This website by Gondar Design is geared
toward the high school biology student and
covers everything from basic cell composition
to genetics.
http://www.biology4kids.com - This colorful
site is loaded with a lot of basic biology
information geared toward children ages 5 to
11 and uses relevant pictures and diagrams.
Following each section is a quiz to test
knowledge gained.
http://www.syvum.com/squizzes/biology/ - A
large selection of biology quizzes,
worksheets, and information sheets
categorized by topic and grade level.