This lesson is a lively and well-balanced mix of direct teaching, visual learning, small group work, and hands-on thinking. Students dive into the real-life drama of ecosystems—where plants, animals, parasites, and even barnacles all play a role. The focus is on interdependence, symbiosis, niches, and how these relationships maintain biodiversity. Expect a strong start with a warm-up discussion, clear instruction via Google Slides, and a solid mix of structured group activities (Symbiosis Sort