Shells, refers mollusk shell. Shell can usually be found at the - TopicsExpress



          

Shells, refers mollusk shell. Shell can usually be found at the beach that creature inside has gone before is usually washed ashore . As some beautiful shells shape , someone will have to collect shells hobby. Shell formation : a large variety of sea conch ( which is not the same as the shell looks origin ) born small conch , their shells as they grow and will become large . So whenever you see a small shells , it might already have died a small conch . Molluscs door (Mollusca) in terms of their species diversity , is the second door of the animal kingdom , widely distributed, from boreal, temperate to tropical , from the ocean to the rivers , lakes, from the plains to the mountains , everywhere. Bivalve mollusks is a door , because there are two pieces of shell named. There are about 7500 kinds of body up to 135 cm . Born in marine, freshwater areas , this program has degraded the animal s head , foot ax was like, on both sides of the body is one pair of each petal -like gills. Shell lateral, open process is passive, its close correlation muscle contraction is required to complete . Cilia jitter cheeks raised whirlpool , making the water and the particles into the cheeks . Mouth and tentacles through a mucous membrane channel particles absorb nutrients , Shellfish general term for a kind of mollusk shells are generally referred to in the biological classification contains Bivalvia ( bivalves ) , the majority of gastropods ( snails ) , multi- plate Gang ( chitons ) and dig foot Gang ( angle beta ) , and as such cephalopods Nautilus is sometimes called the shellfish. Gastropods worldwide distribution , including marine ( approximately 30,000 ) , freshwater ( approximately 5,000 species ) or land ( approximately 30,000 ) , etc., from near the Antarctic and Arctic cold regions to tropical regions are distributed. Can adapt to very diverse living environment, from the garden , forest , desert to mountains, from ditches , rivers to lakes, from estuaries , mudflats , covered intertidal rocks , deep down to the sandy bottom of the tide , and some parasitic camp . Born parasitic refers to a biological organism in vivo or another surface , and uptake of nutrients from the latter in order to maintain the phenomenon of life. The former called parasites , which said the host . Parasite refers to the biological and rely on another organism to survive . There are viruses, bacteria , rickettsia , spirochetes , fungi, protozoa , worms , insects, mites , and parasitic seed plants. Animal parasites called parasites. Host , also known as the host , comprising means to provide habitat parasites parasitic organisms , viruses and the like. Mother and fetus - the host and parasite theory. The theoretical references to the host and the parasite is feasible on the relationship between the mother and the fetus. Fetus itself is not food, but viviparous animal fetus needs to grow for some time in the mother , the fetus is totally dependent on the mother during the lessons get to make their own growth and nutrition . Maternal fetal also provides complete environment for the fetus to avoid being attacked from outside . However, under normal circumstances, the mother and the fetus , the host parasite relationship does not draw the host because of excessive nutrients and cause death of the host. And the fetus itself is not capable of reproduction , not because of parasites increase in the number in the host to increase pressure on the host to provide nutrition . And this host parasite relationship is usually the fetus was born, leaving the mother and the end . Carbon-14 is a radioactive isotope of carbon elements , in February 27, 1940 the University of California at Berkeley Lab s Martin radioactive Carmen and Sam Ruben first to be found. It is of cosmic rays through the air generated by the nitrogen atom . Carbon-14 nucleus has 6 protons and 8 neutrons . Its half-life is approximately 5,730 ± 40 years , decay mode is β decay of carbon 14 atoms into nitrogen-14 atom. As the organic material containing carbon-14 , so that it can determine the approximate age of according to archeology, geology and hydrogeology of the sample. 99% of the Earth in the form of carbon in the presence of carbon-12 , about 1% carbon in the form of the presence of carbon-13 , only one- trillion ( 0.0000000001% ) Carbon-14 is present in the atmosphere. Since the half-life of up to 5,730 , and organic carbon is one of the elements, we can body 14 organisms died residual carbon component to infer its presence age. When biological survival , due to the need to breathe , the body 14 of the carbon content substantially unchanged for biological dead stops breathing , when the body starts to decrease carbon 14 . As the proportion of each element in the carbon isotopes in nature has been very stable , people can antiquities by measuring a carbon content of 14 to estimate its approximate age. This method is called radiocarbon dating method . . Radiocarbon dating method , also known as carbon dating , is the use of naturally occurring radioactive isotope carbon-14 dating method , a method previously used to determine the survival of animals and plants age , can be determined as early as 50,000 years ago organic matter era . For archaeologists , this is an accurate method of dating techniques In humans, the body mass of carbon accounted for 18 %. Organisms per gram of carbon containing approximately 50 billion within 14 carbon atoms , of which about 10 carbon atoms decay every 14 minutes. Double β decay , but also for ββ decay , is a special case β decay , including changes in the nuclei of two units , only occurs in specific nuclei. Normally double β decay will release two pairs of neutrinos , but now scientists have found that not guess whether it is possible to release a double β decay neutrinos . Dry moat huáng (1) (. Shaped sound from the mound (fù), represents the level of the upper and lower topography is related to imperial sound original meaning : no water retaining moat ) with the original meaning [drymoatoutsideacitywall] dry moat , the city also has said the water tank, anhydrous said dry moat . Originated in ancient water ( dry moat ) , as Week Palace Iori one . City originally referred to the excavation walls built dry moat originally referred to the guard without water moat . Magistrate Cheng Huang is the underworld , terms equivalent to mayor Yang circles. . The floods, droughts , epidemics will be prayer , the salute , places vegetarian ; earth, Radical Stroke [ ]: 03 ] [ five elements : earth, stroke [ Simplified ]: 07 , [ Traditional strokes ]: 16 [ bad moral ] : Kyrgyzstan, [ Pinyin ] : tan, [ Wubi input ] : ffcy, [ stroke ]: horizontal, vertical, horizontal, turning downwards , eight wax wax speech : ! anti- soil water owned by their house to make it sink no insects ! ! vegetation belong to their Chak ! anti its home soil ! belong to their water gully ! insects without make ! harvest if the soil, take thousands of years old ! The center area . Cadaverine is a compound having a putrid smell in an animal body tissue decay produced by the hydrolysis of proteins , is a syrupy liquid at room temperature , the freezing depth can be solidified crystals. Cadaverine smoke in the air , to form the dihydrate . Cadaverine of the formula NH2 (CH2) 5NH2, and the like putrescine , cadaverine also a diamine having a certain toxicity . Cadaverine also named 1,5 - pentanediamine (1,5-pentanediamine), 1,5 - diamino pentane (pentamethylenediamine), pentamethylene diamine or body toxins. Putrescine (putrescine) is an organic compound is colorless crystals or colorless to pale yellow liquid. Putrescine and cadaverine , are the bodies of living organisms or degradation of amino acids in proteins . Putrescine of the formula NH2 (CH2) 4NH2. Putrescine also named 1,4 - butanediamine (1,4-diaminobutane), 1,4 - diaminobutane (butanediamine), tetramethylene diamine, or slough base. Both compounds corruption is a major component of odorous gases emitted substances is the reason tone , bacterial vaginosis and other diseases resulting lesions odor . Putrescine, cadaverine , and some other issues such as spermine , spermidine molecules are also in semen and found a number of microorganisms such as algae . Toxicity ; large doses of putrescine is toxic . Acute oral toxicity in mice minimum lethal dose of 1600mg/kg; acute dermal toxicity minimum lethal dose of 300mg/kg. Putrescine corrosive. Can be inhaled , ingested or absorbed through the skin . Eye, nose , throat and skin irritation , can cause symptoms such as headaches or facial redness . Cadaverine is a compound having a putrid smell in an animal body tissue decay produced by the hydrolysis of proteins , is a syrupy liquid at room temperature , the freezing depth can be solidified crystals. Cadaverine smoke in the air , to form the dihydrate . Changes in the body of a series of special phenomena (postmortem phenomena) in the forensic means the body after death various organs , tissues, cells stop life activities and a variety of internal and external environmental factors that affected the action occurred. Earth to Ovoviviparous describe. Ovoviviparous , also known as semi- viviparous refers to animals in vivo fertilization , fertilized eggs remain in the mother , the required nutrition during development has been relying on its yolk , and finally in the form of fetal production . First: ( embryonic yolk yolk membrane ( gas chamber yolk tie ) inner shell egg shell membrane protein shell egg shell egg shell membrane structure . . . . . . . ) Fertilized eggs used to describe biological developmental biology. stage, when it is just a single cell . The word will also be used more loosely through cell division after the first few , although strictly speaking this stage should be called blastomeres ( blastomeres , blastomere ) . Usually by a two haploid fertilized cells ( diploid cells 2 = 1 ) is the number of chromosome ploidy of homologous chromosomes in the cell , only one group is called a single set or haplotype (haploid), two groups called double sets or diploid (diploid). Polyploidy was divided Allopolyploid (Allopolyploidy) and single- source polyploid (Autopolyploidy), former chromosome from different species. Earth Ovoviviparous description. Ovoviviparous , also known as semi - viviparous animal fertilization , the fertilized egg of the mother to keep the nutritional needs and development needs , the yolk final form ( structure: embryonic yolk , egg yolk membrane ( production of tires, tire room yolk lace at this point , only one cell , the fertilized egg , the word will also be more loosely , although strictly speaking, this is a description of the organism zygote stage developmental biology ) . albumin shell egg shell membrane , shell egg shell eggs shell membrane ) . cells stage , the first separating apparatus is usually a few blastomeres ( blastomeres , blastomere ) should be called after comprises two haploid cells ( diploid cells 2 = 1 ) chromosome ploidy multiple homologous chromosomes in the cell , only a group known as the veneer or haploid ( haploid ) , the two groups are called set or ploidy ( diploid ) . Polyploid Allopolyploid ( allopolyploid ) , only Allopolyploidization (Autopolyploidy), former chromosomes of different species . Double sets of organisms , it is a process that is divided into haploid , diploid cells of pure diploid gametes , called meiosis . Biological determinism gender ( male and female diploid haploid ) Red Earth ( male ) child copy number . In mathematics, a generator expression and generation, may have created a collection ...... I was born ( generator , generate, generated by generators ) and closely linked to many of the technical meaning . Relative to the 1860-1900 instrumental record of global land and ocean temperatures rise Zoe 0.75 degrees Celsius. Since 1979 , the ground temperature rises twice as fast , ocean temperature ( the temperature of 0.25 degrees Celsius higher sea temperatures rise Zoe Zoe 0.13 degrees Celsius ) . A yellow color lines , also known as yellow. There are two types of people stick to the same yellow generous , one line from the Department of 570nm light wavelength 580nm generous . Alternative lines of a length of visible light wave mixing GOD . Yellow retina of the human eye to close above the cone cells stimulated to grow with the cone cells , but not like that caused by stimulation of the shortsightedness of cone cells . That department then Vice multi red light in the same green , but you agree Ganduo blue. Yellow generous for color purple, indigo color it GOD . Joe generously with sea temperatures rise generous phenomenon , mainly refers to the human factor even under higher temperatures , and with good reason may be OK, because excessive greenhouse gas emissions caused by the loose . Global warming, which is sometimes called global warming , refers to the period of time Goodbye 20th century , the global average temperature near the earths atmosphere and generosity of 0.74 degrees Celsius Zoe liters. Under normal circumstances , can be observed in the last five years , a generous climate change caused by human activity driven by the scientific community . A major part of the carbon dioxide and other greenhouse gases continue to increase in the content of the generous , generous man-made global warming factor management. The burning of fossil fuels , clean up trees and agriculture to enhance the greenhouse effect Zoe . The first defendant , global warming will be a rich system of monitoring the Swedish chemist Arrhenius Bay generous Ø1897 years . Nuisance to stimulate public debate , but by 90 years, and finally became a generous public concern . California , Hawaii , Central Pacific Bay generous Molao Island University scientists generous offer to four meters high tower 27 - meter generous sampling clock for all four samples , and analysis of carbon dioxide generous . Ordinary people ( protein ) ( on Earth ) ( boy ) . Established ( civilization ) . Biological toxicity ( land ) ( eggs ) , involved in witchcraft ( spell ) . s Venom affects the operationscam surgery ( bounce ) ( the most terrible story ) ( Disease blind ) are different because of the different types of , species of discomfort , and to the same extent , in addition , for certain biological toxic and non-toxic to other organisms selective toxicity is also present in nature, e.g. , the toxicity of some microorganisms , but is substantially simpler to antibiotics other agencies . biological compounds , such as vitamins , minerals, more than a certain amount , the necessary follow-up action is toxic , for example , calcium is required for bone formation , but consuming too much calcium can damage the kidneys . Everyday life is called toxic acute or chronic toxicity or carcinogenic substances in materials, such as thalidomide is teratogenic substances distortion caused by the material , as well as a prominent example , toxicity is very weak . Is a supernatural curse , magic way affect the evidence of the world. Magic spells a lot of difference between Ares that supernatural forces and military attaches great importance to fighting talent , he changed the surrounding environment, and control of the environment, but also can visit the little programmer depends depends the atmosphere is magical nature magic . Known as the poison in everyday life ( daily life ) poisoning supernatural curse. Find a cause of chronic diseases syphilis spirochete Treponema pallidum syphilis baht , twisted , Treponema pallidum , the bacteria , and pathogens , and Germany, and Jaffe Hoffman for the first time in 1905 , this painting is soft, leptospirosis, such as wood chips , metal is not easy, because the transparent view , also called Treponema pallidum . Syphilis anaerobic bacteria can be killed in a soap short time and disinfectants . Damage characteristic of these bacteria invade the body form , usually in the rest of the skin or mucous membranes . Began to organize large-scale damage of N- acetyl -Ð-غالاكتوزا مين infection, the bacteria spread rapidly throughout the body of the host cell , mucopolysaccharideosis synthesis mucopolysaccharide osis Portfolio Analysis deterioration of human cells , tissue clinical Almost all the members of the body , and functional changes . Fang language ( or language phoenix ) half-life is magic . Voodoo in a coma most famous and most shocking . If you have any other enemy shaman abuse treatment eat cm toothfish Quartet , he will, under the strange circumstances , suspended animation , a slave dirty work , and palaces. . ( This is the so-called poison pill to play in the daily life of an attempt to poison the supernatural ( everyday life ) ) } . Voodoo Curse ( disambiguation ) ( air toxins ) water, river water, the casting mold condensate , cooling towers, and the bacterial cell wall , or industrial process toxins. Ice Age at least five times , climate and glacial ice melt, is the rainy season, the temperature is due to global warming, but the temperature rises, ( lights water ) can burn ...... we all know , in order to challenge 2:00 must .. oxygen combustion ( burning ) .. temperature ( ignition point ) , we have taken a common experience .. .. white phosphorus at 30 degrees in the air can be burned .. we assume that 50 -degree water temperature and oxygen into the glass .. through .. Imagine the basis of a public road setback will burn .. when the water boils , ringing sound is also necessary to suspend evaporation , so the water does not ring , which is already established sound . resolution gas to see the power of evaporation temperature dry steam at 100 even has jumped when in a row , and then open the bottle and gives the boiling temperature of water vapor Zoe 0.25 degrees Celsius higher sea temperatures rise in rank and file . Iraqi 0.13 degrees Celsius ) ( voice water , health , character simplify voice from knowledge , which is Fire , an , and said the fire pressurized original meaning: destruction ; mold ) .
Posted on: Sun, 09 Mar 2014 03:40:51 +0000

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