Ecosystems and Interactions
How living and non-living things interact, and how energy and matter move through ecosystems.
Learning goals
- What Is an Ecosystem?Describe an ecosystem as living (biotic) and non-living (abiotic) parts interacting in an area.
- Food Chains and Food WebsTrace the flow of energy from producers through consumers and decomposers in food chains and webs.
- Cycling of MatterDescribe how decomposers and natural cycles return water and nutrients to ecosystems for reuse.
- How Species InteractDescribe interactions between species, including competition, predation, and mutualism.
- Limiting FactorsIdentify factors like food, water, space, and predators that limit how large a population can grow.