Description:This resource includes quick and simple notes for Lessons 1–14 of OpenSciEd Unit 6.6: Cells & Systems. Each lesson is broken down into concise, student-friendly bullet point notes that directly address the OpenSciEd Progress Tracker questions, making complex concepts easier for students to understand and review. To support ongoing assessment, every lesson includes one or two multiple-choice questions designed for fast checks of understanding and reinforcement of key ideas. This resou