In this Ecology Bundle, students will learn about habitats and niches, biotic and abiotic factors, the greenhouse effect and ozone depletion, food chains and food webs, levels of ecological organization, climate zones, and so much more. See complete list below. PRINTABLE, EDITABLE, DIGITAL.In short, this complete teaching unit includes everything you need to teach an introductory ecology unit to your life science or biology students. Resources are available in BOTH printable and digital formats