Topic: Ecosystems and How They Work In this unit, you will do the following: · Describe abiotic and biotic factors and their relationship to an ecosystem · Characterize natural nutrient cycles and human disruptions · Compare and contrast conservation versus preservation “We abuse land because we regard it as a commodity belonging to us. When we see land as a community to which we belong, we may begin to use it with love and respect.” — Aldo Leopold, A Sand County Almanac (The Aldo Leopold Foundation, 2018) Reference The Aldo Leopold Foundation. (2018). Aldo Leopold Quotes from Green Fire. Retrieved from https://www.aldoleopold.org/teach-learn/green-fire-film/leopold-quotes/ ...