Matter (inorganic compounds) used by living things on the molecular level is cycled from old life to new life through major chemical cycles of the earth (e.g., N, H base 2 O, C-O, P).
- Life Science
Energy enters an ecosystem in the form of sunlight and flows through the system to each cell. Matter interacts, changes and recycles in an ecosystem. Populations of organisms survive by maintaining interdependent relationships with one another and by utilizing biotic and abiotic resources from the environment.
Students demonstrate their understanding of Recycling in an Ecosystem by