Leaving a sub plan for an AP Biology class is always a headache. You cannot just leave a fluff video, but you also cannot leave a complex lab for a non-science substitute to manage. This comprehensive, fully editable sub plan is the perfect solution. Centered around "The Fertilizer Shock" documentary, this resource goes far beyond a basic video guide. It is a rigorous, full-period lesson that requires students to apply their knowledge of metabolism, cellular energetics, and symbiosis, analyze