As suggested by Mr. Skerritt at CSS…

Cellular

• Cellular Biology Resource This is a comprehensive site which covers the vast majority of areas we will be dealing with in this unit.
• Biology Online Provides information on the cell and cell organelles. It also provides a comprehensive scientific dictionary.
• General A good general source for the whole course.
• Cell Membrane Excellent site dealing with the cell membrane.
• Photosynthesis An enormous site on photosynthesis with pictures and links.

Microbiology

• Bacteria This is an entire textbook online. Everything you wanted to know and sooooooooo much more.
• Virus Text Another online text dealing with viruses.

Plant Structure and Function

• Web to any Taxon This will allow you to research almost any plant species.
• Plant Structures Pictures, diagrams and explanations of the various parts.
• Life Cycle General plant life cycle diagram.
• Tropisms Good general overview with time elapsed photos. 
  

Animal Anatomy and Function

• Web Anatomy Great for tests! Has diagrams and quizzes.
• Homeostasis Good explanations with lots of examples.
• Merck Manual Every conceivable disorder broken down into divisions.

Environmental

• Web to any Taxon This will allow you to research almost any organism.
• Fish Classification A good source of information for your research.
• Bioamplification A source on some of the effects of bioamplification on the Great Lakes (PDF file).
• For Pesticides
• Against Pesticides
• Biogeochemical Cycles Nice description and provides links to each cycle.
• Canadian Biomes Simple and to the point.
• Population Dynamics A good resource – somewhat technical but ignore those parts.