J M Bernhard1, K R Buck, M A Farmer

  • 1Department of Environmental Health Sciences, School of Public Health, University of South Carolina, Columbia 29208, USA. jmbernha@sph.sc.edu

Nature
|January 19, 2000
PubMed
まとめ

初期の生命は,酸素が少ない深い水域で多様化した可能性が高い. 近代的なダイソキシク沈殿物は,多くの新種のエウカリオートコミュニティを豊富に明らかにし,その多くはプロカリオートシンビオントで,エウカリオゲネシスの洞察を提供します.

関連する概念動画

Bioremediation00:46

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
Symbiosis00:58

Symbiosis

Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
Ecological Niches02:02

Ecological Niches

All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.Multiple species cannot occupy the exact same niche within their habitat. If the niches of two or more species overlap to a large extent, the competitive exclusion principle dictates that one species will outcompete the other, forcing it to...
The Soil Ecosystem02:23

The Soil Ecosystem

Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components: