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मुख्य मेनू खोलें विकिपीडिया खोज 2 पोर्टल: जीवविज्ञान द्वार बातचीत भाषा: हिन्दी घड़ी इतिहास संपादित करें "P: BIO" यहां पुनर्निर्देश करता है। जीवनी पोर्टल के लिए, पोर्टल देखें : जीवनी । पोर्टल विषय क्रियाएँ संस्कृति भूगोल स्वास्थ्य इतिहास गणित प्रकृति लोग दर्शन धर्म समाज प्रौद्योगिकी रैंडम पोर्टल नुवोला ऐप kalzium.svg विज्ञान : विज्ञान का इतिहास गणित रसायन विज्ञान भौतिकी विज्ञानयंत्र-फ़ारसी-18C.jpg   नुवोला ऐप edu math-p.svg    नुवोला ऐप edu science.svg    तीन बोह्र मॉडल कक्षाओं और स्टाइल न्यूक्लियस।एसवीजीजी के साथ स्टिलेटेड परमाणु    Gnome-globe.svg

जीवविज्ञान पोर्टल संपादित करें डार्लिंगटनिया कैलिफ़ोर्निका.जेपीजीहार्वेस्टमैन ओपिलियो कैन्स्ट्रिनी नर.जेपीजी जीवविज्ञान है प्राकृतिक विज्ञान कि अध्ययन जीवन और रहने वाले जीवों उनके सहित, शारीरिक संरचना, रासायनिक प्रक्रियाओं , आणविक बातचीत , शारीरिक तंत्र , विकास और विकास । विज्ञान की जटिलता के बावजूद, कुछ एकजुट अवधारणाएं इसे एक एकल, सुसंगत क्षेत्र में समेकित करती हैं। जीवविज्ञान कोशिका को जीवन की मूल इकाई के रूप मेंपहचानताहै, आनुवंशिकता की मूल इकाई के रूप में जीन , और निर्माण औरइंजन को चलाने वाले इंजन के रूप में विकास करता है।विलुप्त होने की प्रजातियों । रहने वाले जीवों हैं खुला प्रणालियों कि बदलने से जीवित रहने के ऊर्जा और उनके स्थानीय घटते एन्ट्रापी एक स्थिर और महत्वपूर्ण शर्त के रूप में परिभाषित किया गया बनाए रखने के लिए समस्थिति ।

जीव विज्ञान के उप-विषयों को नियोजित अनुसंधान विधियों द्वारा परिभाषित किया गया है और जिस तरह की प्रणाली का अध्ययन किया गया है: सैद्धांतिक जीवविज्ञान मात्रात्मक मॉडल तैयार करने के लिए गणितीय तरीकों का उपयोग करता है जबकि प्रायोगिक जीवविज्ञान प्रस्तावित सिद्धांतों की वैधता का परीक्षण करने के लिए अनुभवजन्य प्रयोग करता है और तंत्र के अंतर्निहित जीवन को समझता है और यह कैसे करता है प्रणाली की जटिलता में क्रमिक वृद्धि के माध्यम से लगभग 4 अरब साल पहले निर्जीव पदार्थ से प्रकट और विकसित हुआ ।

अधिक पढ़ें... संपादित करें चयनित लेख

एडेनंथोस क्यूनेटस (खेती की जाती है, जिसे एडेनंथोस क्यूनेटा एफ। प्रोस्ट्रेट के रूप में लेबल किया जाता है)। Adenanthos cuneatus, also known as coastal jugflower, flame bush, bridle bush and sweat bush, is a shrub of the family Proteaceae native to the south coast of Western Australia. The French naturalist Jacques Labillardière originally described it in 1805. Within the genus Adenanthos, it lies in the section Adenanthos and is most closely related to A. stictus. A. cuneatus has hybridized with four other species of Adenanthos. Growing to 2 m (6 ft 7 in) high and wide, it is erect to prostrate in habit, with wedge-shaped lobed leaves covered in fine silvery hair. The single red flowers are insignificant, and appear all year, though especially in late spring. The reddish new growth occurs over the summer.

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एटेलोपस सर्टिफिकेट कॉलिंग मेल edit.jpg Atelopus certus, the Darien stubfoot toad or Toad Mountain harlequin frog, is a species of toad in the family Bufonidae endemic to Panama.

...Archive Featured biology pictures Read more... edit Major topics General	Life | species | biology Evolution (Intro)	Natural selection | genetic drift | sexual selection | speciation | mutation | gene flow Tree of life	Cladistics | Animals | plants | fungi | protists | bacteria | archaea | prokaryote | eukaryote | three-domain system | angiosperms | insects | molluscs | nematodes | viruses Classification of man	Primate | mammal | vertebrate | craniata | chordate | deuterostome | animal History of biology	Great Chain of Being | omne vivum ex ovo | timeline of biology and organic chemistry History of... ecology | evolutionary biology | geography | model organisms | molecular biology | paleontology Biochemistry	DNA | RNA | protein | enzyme | protein folding | carbohydrate | lipid | glycolysis | citric acid cycle | electron transport chain | oxidative phosphorylation | photosynthesis | protein structure Genetics (Intro)	Gene | genome | karyotype | transcription | translation | recombination | chromosome | Mendelian inheritance | phenotype | genotype | epigenetics | splicing | mutation | genetic fingerprint | chromatin | classical genetics | ecological genetics | molecular genetics | population genetics | quantitative genetics The cell	Cell wall | cell membrane | cytoskeleton | mitochondrion | chloroplast | nucleus | endoplasmic reticulum | Golgi apparatus | cell cycle | mitosis | metabolism | cell signaling | protein targeting Life cycle	DNA replication | reproduction | ploidy | spermatogenesis | alternation of generations | oogenesis | parasitism | evolution of sex | meiosis | senescence Development	Tissues | fertilization | embryogenesis | gastrulation | neurulation | organogenesis | differentiation | morphogenesis | metamorphosis | ontogeny Lab techniques	Genetic engineering | transformation | gel electrophoresis | chromatography | centrifugation | cell culture | DNA sequencing | DNA microarray | green fluorescent protein | vector | enzyme assay | protein purification | Western blot | Northern blot | Southern blot | restriction enzyme | polymerase chain reaction | two-hybrid screening | in vivo - in vitro - in silico Life history	Altricial - precocial | sex ratio Behaviour	Altruism - cooperation - foraging - learning - parental care - sexual conflict - territoriality Ecology	Biomass | food chain | indicator species | extinction | biogeography | habitat | species distribution | Gaia theory | metapopulation Conservation	Biodiversity | biodiversity hotspot | nature reserve | edge effect | Allee effect | corridor | fragmentation | pollution | invasive species | in situ - ex situ | seedbank | environmental economics Field techniques	Belt transect | mark and recapture | species discovery curve Other fields	Anatomy | astrobiology | biological anthropology | botany | bioengineering | bioinformatics | environmental science | ethology | human biology | marine biology | microbiology | natural history | origin of life | paleontology | parasitology | pathology | pharmacology | phylogenetics | physiology | synthetic biology | systems biology | taxonomy | zoology Assessment	Nobel Prize in Physiology or Medicine See also	Template:History of biology edit Selected biography Mary Anning painting.jpg Mary Anning (21 May 1799 – 9 March 1847) was a British fossil collector, dealer and palaeontologist who became known around the world for important finds she made in the Jurassic age marine fossil beds at Lyme Regis where she lived. Her work contributed to the fundamental changes in scientific thinking about prehistoric life and the history of the earth that occurred in the early 19th century.

Anning searched for fossils in the area's Blue Lias cliffs, particularly during the winter months when landslides exposed new fossils that had to be collected quickly, before they were lost to the sea. It was dangerous work, and she nearly lost her life in 1833 during a landslide that killed her dog Tray. Her discoveries included the first ichthyosaur skeleton to be correctly identified, which she and her brother Joseph found when she was just twelve years old; and the first two plesiosaur skeletons ever found. Her observations played a key role in the discoveries that belemnite fossils contained fossilised ink sacs, and that coprolites, known as bezoar stones at the time, were fossilised faeces.

Anning's gender and social class prevented her from fully participating in the scientific community of 19th-century Britain—dominated as it was by wealthy Anglican gentlemen. She struggled financially for much of her life. Her family were poor, and as religious dissenters were subject to legal discrimination. Her father, a cabinetmaker, died when she was eleven. She became well known in geological circles around the world, and was consulted on issues of anatomy as well as about collecting fossils. However, as a woman she was not eligible to join the Geological Society of London, and she did not always receive full credit for her scientific contributions. Indeed she wrote in a letter: "The world has used me so unkindly, I fear it has made me suspicious of everyone." The only scientific writing of hers published in her lifetime appeared in the Magazine of Natural History in 1839, an extract from a letter which Anning had written to the magazine's editor questioning one of its claims. After her death her unusual life story attracted increasing interest. Charles Dickens wrote of her in 1865 that "[t]he carpenter's daughter has won a name for herself, and has deserved to win it."

...Archive Read more... edit Did you know... ...that there are about a million nephrons in a human kidney? ... that endemics along the wildlife of Morocco include more than six hundred species of vascular plants and a single species of bird? ... that an extract of Alchemilla diademata, a plant endemic to Lebanon, shows antimicrobial activity against Staphylococcus aureus? ... that more than 5,000 hen fleas were recorded from the nest of a coal tit? ... that the semi-aquatic grasshopper Cornops aquaticum is being trialled in South Africa as a biological control agent for the invasive water hyacinth? P19 protein dimer P19 protein dimer ... that one of the smallest fish, the Philippine goby, can only grow between 1 and 1.5 cm? ...that the largest flower, Rafflesia has a very foul odor? ... that mesoporous silica nanoparticles are prepared by the Stöber process and are used in preparing biosensors and delivering medications to within cellular structures? ... that the p19 protein (dimer pictured) evolved in an arms race between plants and viruses? ... that seeds of the fossil fruit Suciacarpa have fossil fungi inside them? ... that the fossil ant genus Agastomyrma was described from a single queen, and males of the fossil ant Proceratium eocenicum have a hair fringe? ... that in 1981 Bobbi Campbell became the first person to publicly identify as a person living with HIV/AIDS? ... that less than 50 years after being discovered, Heterelmis stephani is now presumed extinct? ...Archive

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