This chart for Biology 20 Chapter 1 "Energy Transfer In The Biosphere", clearly summarizes the relationship between producers, consumers, their ecological pyramids, and the relationship between different organisms in the food chain.  This chart is made for the McGraw-Hill Ryerson Inquiry Into Biology Textbook, or the Nelson Biology 20-30 textbook, or the Pearson/Nelson Science 20 textbook.  This chart is a great addition to any high school student's portfolio, or to any teacher's curriculum, and is great for diploma exam prep.
 
What's Included:
1 x Biology 20 Chapter 1 Chart (PDF Download)