Ecosystems: Basic ConceptsEcosystem: Defined area in which a community lives with interactions taking place among the organisms between the community and its non-living physical environment.
•What is meant by an ecosystem
•The biotic and abiotic community
•Food chains, trophic levels, ecological pyramid
•Water and carbon cycles (skip)‏
•Benefits from ecosystem services
Read more on the presentation

Ecosystems Basic Concepts-COMMUNITY HEALTH NURSING ppt