Cycles, Balance, and Life http://www.kidsgeo.com/geography-for-kids/0156-cycles-balance-life.php For hundreds of millions of years, the chemicals and elements found on Earth have remained relatively constant, or in other
The first academic reference to the ecosystem and related concepts such as habitat, ecological succession and others. http://www.barrameda.com.ar/ecology/the-ecosystem.htm Towards 1950 the ecologists elaborated the scientific
Basic ecology Definition Ecology is a stream of science that deals with many aspects concerning how the living and non-living components of the environment interact
Ecosystems Ecosystems are the basic functional unit of the enviroment. It is difficult to define what an ecosystems precisely is, but the following definition is
Ecosystem ecology http://en.wikipedia.org/wiki/Systems_ecology#Ecosystem_ecology Ecosystem ecology is the integrated study of biotic and abiotic components of ecosystems and their interactions within an ecosystem framework. This science examines how ecosystems work and relates this to
Introduction to Basic Ecology http://en.wikibooks.org/wiki/Ecology/Introduction An earth star fungus, Geastrum aff. welwitschii. The strange structures shown are but a small part of the fungus, developed by that organism
The Ecosystem http://www.eoearth.org/view/article/152248/ Author: Erle Ellis Topic Editor: J. Emmett Duffy An ecosystem is a community of organisms interacting with each other and with their environment such