Biogeochemistry

Ecology () is the natural science of the relationships among living organisms and their environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere levels. Ecology overlaps with the closely related sciences of biogeography, evolutionary biology, genetics, ethology, and natural history.

paradigm that living organisms interact with their surroundings in a self-regulating system

thumb|right|300px| Cyanobacterial Microbial mat|mat dominated by [[Anabaena sp. (heterocystous) in the Mayotte lagoon at 14 m depth. These cyanobacteria fix nitrogen and influence redox conditions, contributing to biogeochemical cycling in marine environments.]]

timeline of the development of free oxygen in the Earth's seas and atmosphere

study of the impacts and processes that organisms have had on the Earth

research institute in Kiel, Germany

research institute

research institute