biogeochemical cycle
41Microbial mat — A microbial mat is a multi layered sheet of micro organisms, mainly bacteria and archaea. Microbial mats grow at interfaces between different types of material, mostly on submerged or moist surfaces but a few survive in deserts.[1] They colonize… …
42Cold seep — Marine habitats Tube worms are among the dominant species in one of four cold seep community types in the Gulf of Mexico. Littoral zone …
43Lithotroph — A lithotroph is an organism that uses an inorganic substrate (usually of mineral origin) to obtain reducing equivalents for use in biosynthesis (e.g., carbon dioxide fixation) or energy conservation via aerobic or anaerobic respiration.[1] Known… …
44Lithoautotroph — A lithoautotroph is a microbe which derives energy from reduced compounds of mineral origin. They may also be referred to as chemolithoautotrophs, a type of lithotrophs, reflecting their autotrophic metabolic pathways. Lithoautotrophs are… …
45Photosynthesis — Composite image showing the global distribution of photosynthesis, including both oceanic phytoplankton and vegetation …
46History of biology — For the video game, see History of Biology (video game). The frontispiece to Erasmus Darwin s evolution themed poem The Temple of Nature shows a goddess pulling back the veil from nature (in the person of Artemis). Allegory and metaphor have… …
47Barrage de Petit-Saut — Géographie Pays …
48Ecological footprint — The ecological footprint is a measure of human demand on the Earth s ecosystems. It is a standardized measure of demand for natural capital that may be contrasted with the planet s ecological capacity to regenerate.[1] It represents the amount of …
49Disturbance (ecology) — Damages of storm Kyrill in Wittgenstein, Germany. In ecology, a disturbance is a temporary change in average environmental conditions that causes a pronounced change in an ecosystem. Outside disturbance forces often act quickly and with great… …
50Heterotroph — Overview of cycle between autotrophs and heterotrophs A heterotroph (English pronunciation: /ˈhɛtərɵtroʊf/; ἕτερος heteros = another , different and τροφή trophe = nutrition ) is an organism that cannot …
