microbial analysis
41Abiogenic petroleum origin — is a largely abandoned hypothesis that was proposed as an alternative to theory of biological petroleum origin. It was relatively popular in the past, but it went largely forgotten at the end of the 20th century after it failed to predict the… …
42Temperature gradient gel electrophoresis — (TGGE) and Denaturing Gradient Gel Electrophoresis (DGGE) are forms of electrophoresis which use either a temperature or chemical gradient to denature the sample as it moves across an acrylamide gel. TGGE and DGGE can be applied to nucleic acids… …
43Nutrient cycle — …
44Cline (biology) — In biology, an ecocline or simply cline (Greek: κλίνω = to possess or exhibit gradient, to lean) describes an ecotone in which a series of biocommunities display continuous gradient.[1] The term was coined by the English evolutionary biologist… …
45Metabolismo — Se ha sugerido que Metabolización sea fusionado en este artículo o sección (discusión). Una vez que hayas realizado la fusión de artículos, pide la fusión de historiales …
46Hydrothermal vent — Marine habitats White smokers emitting liquid carbon dioxide at the Champagne vent, Northwest Eifuku volcano, Marianas Trench Marine National Monument Littoral zone …
47Microfluidics — deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub millimeter, scale. Typically, micro means one of the following features: small volumes (nl, pl, fl) small size low… …
48Bioluminescence — Flying and glowing firefly, a.k.a. Photinus pyralis …
49Trophic state index — The quantities of nitrogen, phosphorus, and other biologically useful nutrients are the primary determinants of a body of water s trophic state index (TSI). Nutrients such as nitrogen and phosphorus tend to be limiting resources in standing water …
50Trophic level — First trophic level The plants in this image, and the algae and phytoplankton in the lake, are primary producers. They take nutrients from the soil or the water, and manufacture their own food by photosynthesis, using energy from the sun. The… …
