411 REFERENCE · Wikibooks
FHSST Biology/Contents/Index/ES/Ecosystems
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Chapter 1: Ecosystems
Biospheres, biomes and ecosystems
Resources
Biotic (living) and Abiotic (non-living) resources
Nutrient cycles
Energy flow within environments