Help


[permalink] [id link]
+
Page "Hydrothermal vent" ¶ 3
from Wikipedia
Edit
Promote Demote Fragment Fix

Some Related Sentences

terrestrial and hydrothermal
For example, iron oxidizing bacteria are abundant in marine and terrestrial hydrothermal systems, where they often display distinctive cell morphologies and are commonly encrusted by minerals, especially bacteriogenic iron oxides and silica.

terrestrial and systems
Many cultures have attached importance to astronomical events, and the Indians, Chinese, and Mayans developed elaborate systems for predicting terrestrial events from celestial observations.
For this they design global and national control networks, using space and terrestrial techniques while relying on datums and coordinate systems.
This may involve transformations between or among astronomical and terrestrial coordinate systems.
During the governments of General Juan Alberto Melgar ( 1975 – 78 ) and General Policarpo Paz ( 1978 – 82 ), Honduras built most of its physical infrastructure and electricity and terrestrial telecommunications systems, both of which are state monopolies.
MPEG-2 is widely used as the format of digital television signals that are broadcast by terrestrial ( over-the-air ), cable, and direct broadcast satellite TV systems.
As of, known extrasolar planets ( in planetary systems and multiple planetary systems ) are listed in the Extrasolar Planets Encyclopaedia, ranging in size from that of terrestrial planets similar to Earth to that of gas giants larger than Jupiter.
Although tests are being performed in Bucharest it is possible that Romania will not migrate to digital terrestrial systems, but completely discontinue this service, and sell the available spectrum for other purposes, since the said investments provide limited appeal.
The interaction of the solar wind with the terrestrial atmosphere can produce spectacular aurorae, and can play havoc with electrically sensitive systems such as electricity grids and radio signals.
A terrestrial version of the VCR ’ s flow schematic can be found in reference 2 and in the summary of non-classical nuclear systems in the second external link.
This makes the noise figure a useful figure of merit for terrestrial systems where the antenna effective temperature is usually near the standard 290 K. In this case, one receiver with a noise figure say 2 dB better than another, will have an output signal to noise ratio that is about 2 dB better than the other.
The freshwater major habitat types reflect groupings of ecoregions with similar biological, chemical, and physical characteristics and are roughly equivalent to biomes for terrestrial systems.
Monitoring stations usually transmit data back by terrestrial radio, although occasionally satellite systems are used.
Today, Gray codes are widely used to facilitate error correction in digital communications such as digital terrestrial television and some cable TV systems.
Digital video codecs are found in DVD systems ( players, recorders ), Video CD systems, in emerging satellite and digital terrestrial broadcast systems, various digital devices and software products with video recording or playing capability.
When the surfactant systems of different pinnipeds are analyzed and compared to terrestrial mammals, pinnipeds show different surfactant composition and secretion, probable adaptations for an efficient surfactant system to deal with the pressures of collapsing lungs.
Compared with C-band, K < sub > u </ sub > band is not similarly restricted in power to avoid interference with terrestrial microwave systems, and the power of its uplinks and downlinks can be increased.
Mitsch and Gosselink write that wetlands exist "... at the interface between truly terrestrial ecosystems and aquatic systems, making them inherently different from each other, yet highly dependent on both.
Weather satellite systems provide information about terrestrial weather.
There is a large transitional difference between many terrestrial and aquatic systems as C: P and C: N ratios are much higher in terrestrial systems while N: P ratios are equal between the two systems.

terrestrial and majority
The great majority of living terrestrial vertebrates are quadrupeds.
Recent work suggests that this may not be the case with single stranded viruses forming the majority of viruses found in sea water, fresh water, sediment, terrestrial, extreme, metazoan-associated and marine microbial mats.
All 651 species of terrestrial snail are endemic, as are a majority of the island's butterflies, scarab beetles, lacewings, spiders and dragonflies.
Silicates comprise the majority of the earth's crust, as well as the other terrestrial planets, rocky moons, and asteroids.
The majority of crustaceans are aquatic, living in either marine or freshwater environments, but a few groups have adapted to life on land, such as terrestrial crabs, terrestrial hermit crabs, and woodlice.
Many terrestrial plant species are endangered as a result of soil eutrophication, such as the majority of orchid species in Europe.
Almost all marine gastropods breathe with a gill, but many freshwater species, and the majority of terrestrial species, have a pallial lung.
The majority are arboreal, with a sizeable minority that are terrestrial.
Unlike terrestrial ecosystems, the majority of primary production in the ocean is performed by free-living microscopic organisms called phytoplankton.
As discussed above, an equally plausible hypothesis for the majority of these events is that they are caused by the terrestrial atmosphere.
The majority of amphibians ( class Amphibia ) have an aquatic larval stage, like a tadpole, but then live as terrestrial adults, and may return to the water to mate.
The vast majority are arboreal and typically found in trees or bushes, but a few species ( notably the Namaqua Chameleon ) are partially or largely terrestrial.
The majority of the town receives its terrestrial television from the Emley Moor transmitting station, which broadcasts local news from BBC Look North and Calendar News.
For a number of years it had the largest audience share after the five analogue terrestrial stations, a claim now held by its sister service ITV3 both of which are freely available to a majority of households.
The channel used abridged versions of the majority of the programmes it used due to the cutting down of programmes to fit commercial timeslots as opposed to terrestrial slots.
The majority of the channels ' programmes are sourced from the BBC programme archives ; however, some are bought in from other terrestrial stations and some productions are commissioned by UKTV themselves.
The Selva Zoque in the eastern-central region of the isthmus is an area of great ecological importance, the largest remaining area of tropical rainforest in Mexico with the majority of the terrestrial biodiversity in Mexico.
Like the majority of traditional Tibetan metal instruments, the kīla is often made from brass and iron ( terrestrial and / or meteoric iron.
The vast majority of digital cable television services are provided by Virgin Media with satellite television available from Freesat or British Sky Broadcasting and free-to-air digital terrestrial television by Freeview.
Like other community radio stations that are located in the Brisbane licence area, Switch 1197 broadcasts on DAB + Digital Radio, with the majority of its programming being that of a simulcast of its main terrestrial programming output.

terrestrial and water
Most amphibians lay their eggs in water and have aquatic larvae that undergo metamorphosis to become terrestrial adults.
The liver of terrestrial amphibians converts ammonia to urea, a less toxic, water-soluble nitrogenous compound, as a means of water conservation.
Larvae and most aquatic adult amphibians excrete the nitrogen as ammonia in large quantities of dilute urine while terrestrial species, with a greater need to conserve water, excrete the less toxic product urea.
The eggs of amphibians are typically laid in water and hatch into free-living larvae that complete their development in water and later transform into either aquatic or terrestrial adults.
Most terrestrial caecilians that lay eggs do so in burrows or moist places on land near bodies of water.
The common name " marine toad " and the scientific name Bufo marinus suggest a link to marine life, but the adult cane toad is entirely terrestrial, only venturing to fresh water to breed.
Robert A. Heinlein originally coined the term grok in his 1961 novel Stranger in a Strange Land as a Martian word that could not be defined in Earthling terms, but can be associated with various literal meanings such as " water ", " to drink ", " life ", or " to live ", and had a much more profound figurative meaning that is hard for terrestrial culture to understand because of its assumption of a singular reality.
However, despite their age, they are pretty vulnerable to terrestrial environment: water, salt, oxygen attack the meteorites as soon they reach the ground.
Free-living flatworms are mostly predators, and live in water or in shaded, humid terrestrial environments such as leaf litter.
** The terrestrial region, according to Aristotle, consisted of concentric spheres of the four elements — earth, water, air, and fire.
Some salamander species are fully aquatic throughout life, some take to the water intermittently, and some are entirely terrestrial as adults.
The diet of hippos consists mostly of terrestrial grasses, even though they spend most of their time in the water.
Causes of multipath include atmospheric ducting, ionospheric reflection and refraction, and reflection from water bodies and terrestrial objects such as mountains and buildings.
Marine species are found mostly interstitially in between sediment particles, while terrestrial species live in the water films around grains of soil.
* ( ix ) " is an outstanding example representing significant on-going ecological and biological processes in the evolution and development of terrestrial, fresh water, coastal and marine ecosystems, and communities of plants and animals "
For example, for submerged terrestrial sites or inland water, identification of pollen samples from sedimentary or silt layers can provide information on the plants growing on surrounding land and hence on the nature of the landscape.
Observations with Hubble Space Telescope and large terrestrial telescopes found water ice absorption features in the spectrum of Puck.
Global regions are those areas of the planet that are easily distinguishable from space, and are therefore clearly distinguished by the two basic terrestrial environments, land and water.
A strictly terrestrial animal, by occasionally hunting for food in shallow water, then in streams or lakes, might at last be converted in an animal so thoroughly aquatic as to brace the open ocean The otter-like mustelid Potamotherium may actually represent an even earlier phase in the evolution of pinnipeds.
Initially making only tentative forays onto land, tetrapods adapted to terrestrial environments over time and spent longer periods away from the water, while also spending a longer part of their juvenile stage on land before returning to the water for the rest of their life.
The pygmy hippopotamus displays many terrestrial adaptations, but like its larger cousin, it is semi-aquatic and relies on proximity to water to keep its skin moisturized and its body temperature cool.

0.638 seconds.