Minnesota Academic Standards
MN.5.4. Life Science
5.4.2. Interdependence in Living Systems
188.8.131.52. The student will understand that natural systems have many parts that interact to maintain the living system.
184.108.40.206.1. Describe a natural system in Minnesota, such as a wetland, prairie or garden, in terms of the relationships among its living and nonliving parts, as well as inputs and outputs.