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Encyclopedia results for Reproduction

Reproduction





Encyclopedia results for Reproduction

  1. Reproduction

    process. Reproduction or procreation is the biological process by which new offspring individual organism s are produced from their parents . Reproduction is a fundamental feature of all known life each individual organism exists as the result of reproduction. The known methods of reproduction are broadly grouped into two main types Sexual reproduction sexual and asexual reproduction asexual . In asexual reproduction, an individual can reproduce without involvement with another individual ... reproduction. Asexual reproduction is not, however, limited to unicellular organism single celled organisms ... is thought to reproduce entirely by asexual means. Sexual reproduction typically requires the involvement of two individuals or gamete s, one each from opposite type of sex . Asexual reproduction Main Asexual reproduction Asexual reproduction is the process by which an organism creates a genetically ... , may also reproduce sexually. For instance, most plants are capable of vegetative reproduction reproduction without seeds or spores but can also reproduce sexually. Likewise, bacteria may exchange genetic information by bacterial conjugation conjugation . Other ways of asexual reproduction include parthenogenesis , Fragmentation reproduction fragmentation and spore formation that involves ... also used to describe reproduction modes in hermaphroditic species which can self fertilize. Sexual reproduction Main Sexual reproduction See Human reproduction File Hoverflies mating midair.jpg thumb 250px Hoverfly Hoverflies mating in midair flight Sexual reproduction is a biological process by which ... life stage. Bryophyte still maintains the sexual reproduction during its evolution despite the fact ... reproduction has a bigger advantage by itself, since it allows gene shuffling Hybrid biology hybrid ... forms. ref TBA ref Allogamy Main Allogamy Allogamy is a term used in the field of biological reproduction ... image removed File meiosis.jpg center Same sex reproduction In recent decades, developmental biologists ...   more details



  1. Digital reproduction

    Unreferenced stub auto yes date December 2009 Orphan date December 2009 Digital reproduction is one form of data reproduction which is based on the digital data model. The advantage of digital reproduction of data over analogue reproduction is its lossless quality. Reproducing analogue data is inherently lossy , because every electronic component involved in any analogue reproduction process can introduce noise to the final result. Compare analogue processing to digital processing . DEFAULTSORT Digital Reproduction Category Digital technology Tech stub ...   more details



  1. Social reproduction

    Social reproduction is a sociological term referring to processes which sustain or perpetuate characteristics of a given social structure or tradition over a period of time. See also Cultural reproduction socio stub Category sociology ...   more details



  1. Reproduction (disambiguation)

    Wiktionarypar reproduction Reproduction may mean Reproduction , the biological process by which new individual organisms are produced Asexual reproduction , where an organism creates a copy of itself there is no genetic contribution from another organism Sexual reproduction , where two organisms contribute genetic material in the creation of a new individual organism Self replication , mechanical, memetic and other form of self replication Reproduction economics , in Marxian economics, recurrent or cyclical processes by which the initial conditions necessary for economic activity to occur are constantly re created Reproduction album , a 1979 album by British electronic band The Human League Reproductions album , a 2007 album by singer Charlotte Martin Reproducibility Sound reproduction , audio recording and replay Reproduction Auto parts , remanufacturing of obsolete automotive spares See also Copy disambiguation disambig es Reproducci n desambiguaci n fr Reproduction nl Reproductie pt Reprodu o desambigua o ro Reproducere dezambiguizare sq Riprodhimi simple Reproduction disambiguation sk Reprodukcia sv Reproduktion ...   more details



  1. Artificial reproduction

    Unreferenced stub auto yes date December 2009 Main Reproductive technology Artificial reproduction is the creation of new life by other than the natural means available to an organism . Examples include artificial insemination , in vitro fertilization , cloning and embryonic splitting, or cleavage embryo cleavage . Cutting plants stems and placing them in compost is also a form of artificial reproduction. DEFAULTSORT Artificial Reproduction Category Reproduction Biology stub ar ...   more details



  1. Reproduction (journal)

    Italic title Infobox Journal title Reproduction formernames Journal of Reproduction and Fertility, Reviews of Reproduction cover editor discipline Reproductive medicine abbreviation Reproduction publisher BioScientifica on behalf of the Society for Reproduction and Fertility country United Kingdom frequency Monthly history 1960 present openaccess license impact 3.073 impact year 2008 website http www.reproduction online.org link1 link1 name link2 link2 name RSS atom JSTOR OCLC 45662873 LCCN 2001245725 CODEN RCUKBS ISSN 1470 1626 eISSN 1741 7899 Reproduction is a Peer review peer reviewed medical journal covering reproductive biology . Its focus is on cell biology cellular and molecular biology of reproduction, including the development of gamete s and early embryo s in all species developmental processes such as cellular differentiation cell differentiation , morphogenesis and related regulatory mechanisms in normal and disease models assisted reproductive technology assisted reproductive technologies in model systems and in a clinical environment and reproductive endocrinology and infertility reproductive endocrinology , reproductive immunology immunology , and reproductive endocrinology and infertility physiology . Emerging topics including cloning , the biology of embryonic stem cell embryonic stem cells , environmental effects on reproductive potential and health, and epigenetics epigenetic effects on reproductive and developmental processes are also covered. History The journal was established in 1960 as the official journal of the Society for Reproduction and Fertility under the name Journal of Reproduction and Fertility ISSN 0022 4251 . It obtained its current name in 2001 when it was merged with Reviews of Reproduction , a journal that was published by the Society for Reproduction and Fertility from 1996 2000 ISSN 1359 6004 . ref name about cite web url http www.reproduction online.org misc about.shtml title Reproduction About Reproduction format work accessdate ...   more details



  1. Biology of Reproduction

    Biology of Reproduction is a peer reviewed academic journal , and the official journal of the Society for the Study of Reproduction . It is published with the assistance of HighWire Press . External links official http www.biolreprod.org ISSN 0006 3363 eISSN 1529 7268 Category Biology journals biology journal stub ...   more details



  1. Reproduction speed

    In telecommunication , the term reproduction speed has the following meanings In Fax facsimile systems, the rate at which recorded Copying copy is produced. The reproduction speed is usually expressed a as the area of recorded copy produced per unit time , such as square meters per second or b as the number of pages per minute. In duplicating equipment, the rate at which copies are made. The reproduction speed is usually expressed in pages per minute. References FS1037C MS188 Category Telecommunications telecomm term stub ...   more details



  1. Asexual reproduction

    Image caduco.jpg thumb 400px Asexual reproduction in Marchantiophyta liverworts a dehiscence botany caducous leaf phylloid germinating Asexual reproduction is a mode of reproduction by which offspring arise from a single parent, and inherit the genes of that parent only, it is reproduction which does ... which is reproduction without the fusion of gamete s. Asexual reproduction is the primary form of reproduction ... likened to sexual reproduction . ref name Narra cite journal author Narra HP, Ochman H ... 16950097 doi 10.1016 j.cub.2006.08.024 issue 17 ref A complete lack of sexual reproduction is relatively ... author Dawson KJ title The Advantage of Asexual Reproduction When is it Two fold? journal Journal ... content ap jt 1995 00000176 00000003 art00203 issue 3 ref suggest that asexual reproduction may have ... reproduction offers a net advantage by allowing more rapid generation of genetic diversity, allowing ... author Engelst dter J title Constraints on the evolution of asexual reproduction journal Bioessays ... ref may underlie why few animals have relinquished sexual reproduction completely in their life cycles ... asexually through binary fission most of these are also capable of sexual reproduction. Some ... break away from the parent organism. Vegetative reproduction Main Vegetative reproduction Vegetative reproduction is a type of asexual reproduction found in plants where new individuals are formed without ... glossary gloss6 asexual.html title Asexual Reproduction publisher Ucmp.berkeley.edu date accessdate 2010 08 13 ref Examples of vegetative reproduction include the formation of miniaturized plants ... . Since sexual reproduction is often more narrowly defined as the fusion of gametes fertilization , spore formation in plant sporophyte s and algae might be considered a form of asexual reproduction ..., both events spore formation and fertilization are necessary to complete sexual reproduction in the plant ... after dispersal. This method of reproduction is found for example in Conidium conidial fungi and the red ...   more details



  1. Cultural reproduction

    Cleanup date April 2008 Cultural reproduction is the transmission of existing cultural values and norms ... University of Canterbury New Zealand, 1997 ref Cultural reproduction refers to the mechanisms by which continuity of cultural experience is sustained across time. Cultural reproduction often results in social reproduction, or the process of transferring aspects of society such as class from generation ... are among the main mechanisms of cultural reproduction, and do not operate solely through what is taught ..., 1997 ref Reproduction as it is applied to culture, is the process by which aspects of culture are passed ... taking with them certain cultural norms and traditions. For centuries cultural reproduction has occurred ... a process known as socialization . Methods of Cultural Reproduction The method through which cultural reproduction is perpetuated varies by the socializing agent s relative location, awareness, and intention ... forces of cultural reproduction. ref name ReferenceB Gray, Ann, and Jim McGuigan, eds. Studying Culture ... Education as an agent of cultural reproduction The concept of education as an agent of cultural reproduction is argued to be less directly explained by the material and a subject taught, but rather ... the Role of Education in Social Reproduction The Impact of School Type on the Cultural and Social ... of education within cultural reproduction and further to what degree, if any, this system either ... Reproduction The Role of Cultural Factors and Educational Mediators, Kathleen Lynch, British Journal ... an acceptance to the reproduction of submissive attitude to the established order ref name EduRole ... each successive generation. History The concept of cultural reproduction was first developed by the French ... was on education in a modern society. ref name Jenks, Chris Page 2 Jenks, Chris. Cultural Reproduction ... Page 2 One of Pierre Bourdieu and Jean Claude Passeron main concepts on Cultural Reproduction was in their book Cultural Reproduction and Social Reproduction . Bourdieu s main focus was the structural ...   more details



  1. Tone reproduction

    In the theory of photography , tone reproduction is the mapping of scene luminance and color to print reflectance or display device display luminance , ref cite book title Imaging Processes and Materials author John Sturge, Vivian Walworth, and Allan Shepp publisher John Wiley and Sons year 1989 isbn 0471290858 url http books.google.com ?id dwv4w0OE QIC&pg RA1 PA449&dq 22tone reproduction curve 22 luminance reflectance ref with the aim of subjectively properly reproducing brightness and brightness ... Reproduction, with a Graphic Method for the Solution of Problems author L. A. Jones volume 190 issue ... books.google.com ?id t UGAAAAYAAJ&pg PA39&dq photography tone reproduction doi 10.1016 S0016 0032 20 92118 X ref The reproduction of color scenes in black and white tones is one of the long time concerns ... ?id C s6AAAAMAAJ&pg PA183&dq tone rendering print ref A tone reproduction curve is often ... reproduction, and between accurate and preferred tone reproduction, have long been recognized. Many ... form the overall tone reproduction curve the Jones diagram was developed as a way to illustrate ... Reproduction of Tone author L. A. Jones journal Journal of the Optical Society of America ...&pg PA232&dq photographic reproduction of tone brightness tone reflecting illumination tones ref ref ... http books.google.com ?id BRYa6Qpsw48C&pg PA236&dq objective subjective luminance tone reproduction ... reproduction curve. The exposure of the paper is sometimes modified in the darkroom by dodging and or burning in , further complicating the overall tone reproduction, usually helping to map a wider ... sensor s tend to be nearly linear, but these nonlinear tone reproduction characteristics are emulated ..., a tone reproduction curve is applied to a desired output referred luminance value, for example ... 22tone reproduction curve 22 22dot gain 22 ref Dot based printing methods have a finite native dot size ... substrate . A tone reproduction curve is applied to the electronic image prior to printing, so that the reflectance ...   more details



  1. Vegetative reproduction

    right Vegetative reproduction from a stem cutting less than a week old. Some species are more conducive ... of which produces a flower stem. Vegetative reproduction vegetative propagation , vegetative multiplication , vegetative cloning is a form of asexual reproduction in plants. It is a process by which ... clones. Apomixis is a type of asexual reproduction involving unfertilized seeds. Hawkweed Hieracium ... of asexual reproduction. Bulbils are sometimes formed in the flowers of garlic . The leafy crown of a pineapple fruit will root to form a new plant. These cases would not be vegetative reproduction because normally reproductive parts were involved. They would be considered asexual reproduction however. Vegetative reproduction involves only vegetative structures, i.e. roots, stems or leaves ... s. The rhizome is a modified underground stem serving as an organ of vegetative reproduction, e. g ... s are important vegetative reproduction organs in some species, such as the strawberry , numerous .... A form of budding called Basal shoot suckering is the reproduction or regeneration biology ... . Another type of a vegetative reproduction is the production of bulb s. Plants like onion Allium ... the stem or cane of the parent plant. Natural vegetative propagation Natural vegetative reproduction ... reproduction of a plant. And, in a few species such as Kalanchoe Kalancho , leaf leaves are involved in vegetative reproduction. Most plant species that survive and significantly expand by vegetative reproduction would be perennial almost by definition, since specialized organs of vegetative reproduction ... in a location through vegetative reproduction of individuals over a long period of time constitutes a clonal colony . In a sense, this process is not one of reproduction but one of survival and expansion ... and remains intact, the process is called vegetative growth . However, in vegetative reproduction ... J. Grant 1864 . Vegetative Reproduction in New York a comprehensive study. Stony Brook University ...   more details



  1. Reproduction fees

    Reproduction fees are charged by image collections for the right to reproduce images in publications. This is not the same as a copyright fee, but is charged separately, as is the cost of the provision of the image. It can be charged where an image is out of copyright, and reflects the possession of the image by a collection. Image collection charges vary according to the media books, magazines, TV, Internet etc. , and print run. Some charge a lower fee for not for profit publications. In the case of the Web, none appear to grant use in perpetuity, but for small blocks of time &mdash 3 months, 6 months, etc. Some institutions employ specialist firms to administer their copyrights and reproduction fees. In recent years the money asked per image can be so great as to make the publication of limited market topics un viable, by the time the other production costs are factored in. This is likely to have a deleterious effect on the future health of specialist academic publishing world wide. The expansion of public domain image resources appear to be the way of overcoming this problem. On the other hand the fees can help a collection to balance its finances. See also The court case Bridgeman Art Library Ltd. v. Corel Corporation established that exact photographic copies of public domain works of art are not copyright able under United States law . External links Elaine M. Stainton http www.indiana.edu aah vol2 iss1.html Photo Reproduction Fees and Designations Three Modest Proposals concerning fine art reproduction fees Category Stock photography ...   more details



  1. Reproduction (album)

    Infobox Album See Wikipedia WikiProject Albums Name Reproduction Type Album Artist The Human League Cover Human League Reproduction.jpg Released October 1979 Recorded Workshop Studio, Sheffield, 1979 Genre Electronic music Electronic Length 43 10 Label Virgin Records Producer Colin Thurston Reviews Allmusic rating 3 5 Allmusic class album id r9613 pure url yes Link Last album The Dignity of Labour 12 br 1979 This album Reproduction br 1979 Next album Holiday 80 EP br 1980 Reproduction is the debut album released by British synthpop band The Human League . The album was released in October 1979 through Virgin Records Ltd. Reproduction contains nine tracks of electronic music synthpop and was recorded during six weeks at The Human League s studio in Sheffield . The recordings were produced by Colin Thurston , who had previously worked on some key new wave recordings such as Iggy Pop s Lust for Life song Lust for Life and the first Magazine band Magazine album, and would go on to produce numerous hit albums of the 1980s, most notably for Duran Duran . The album was a commercial failure upon its initial release in October 1979, but it was re issued and charted almost two years later in August 1981, earning a Silver disc by the end of the year and peaking at no.34 in early 1982. The album spent a total of 23 weeks on the album chart and was later certified Gold by the British Phonographic Industry BPI in 1988. The only single released from the album was Empire State Human which initially failed to chart, but was re released in June 1980 with a free single taken from the band s second album Travelogue Human League album Travelogue and reached 62. The band s debut single from 1978, Being Boiled , was not included on the original release of Reproduction , but was added as an extra track on all CD issues from the late 1980s onwards. A re recorded version of that single s B side ... albums ca Reproduction sv Reproduction ...   more details



  1. Human reproduction

    Human reproduction is any form of sexual reproduction resulting in the Fertilisation conception of a child , typically involving sexual intercourse between a man and a woman. During intercourse, the interaction between the Male reproductive system human male and Female reproductive system human female reproductive systems results in fertilization of the woman s ovum by the man s sperm , which after a gestation period is followed by childbirth . The fertilization of the ovum may nowadays be achieved by artificial insemination methods, which do not involve sexual intercourse. Anatomy See Human reproductive system The human male seedetails Male reproductive system human The male reproductive system contains two main divisions the testicle testes where sperm are produced, and the penis . In humans, both of these organs are outside the abdominal cavity . Having the testes outside the abdomen facilitates temperature regulation of the sperm, which require specific temperatures to survive. If the testicles remain too close to the body, it is likely that the increase in temperature will harm the sperm, making conception more difficult. The human female seedetails Female reproductive system human The female reproductive system likewise contains two main divisions the vagina and uterus , which ... . Process Human reproduction begins with sexual intercourse, followed by nine months of pregnancy .... Sexual intercourse Main Human sexual intercourse Human reproduction takes place as internal fertilization ... Reproduction in Humans. 2006. John W. Kimball. Kimball s Biology Pages, and online textbook. ref Political and social There are groups promoting more human reproduction and those who think reproduction ought to be limited. Natalism promotes reproduction, while anti natalism promotes birth control as a solution to overpopulation and its effects. See also Human Reproduction journal Journal of Human Reproductive Sciences References reflist Category Reproduction cs Rozmno ov n lov ka sv M nsklig fortplantning ...   more details



  1. Reproduction (economics)

    nofootnotes date April 2010 Marxist theory In Marxian economics , economic reproduction refers to recurrent ... simple reproduction and expanded or enlarged reproduction . In the former case, no economic growth ... Mandel additionally refers in his two volume Marxist economic theory to contracted reproduction , meaning ...., The Collapse of Complex Societies . Reproduction in this case continues to occur, but investment, employment ... economic activity, economic reproduction contrasts with equilibrium economics, because economic reproduction ... developed Marx s idea further in his input output economics . In Marx s view, economic reproduction ... population and their dependents through consumption. the reproduction and growth of the total population, including procreation and childrearing. the reproduction, enforcement and maintenance of social ... rights. the maintenance and reproduction of trading and distribution relations. What is specific to capitalist society is that these reproduction processes are accomplished primarily via the intermediary of commercial trade they are mediated by the market. Reproduction on a larger and larger ... is to secure those general collective conditions for the reproduction and maintenance of society ... or too risky . Ecologists would nowadays probably add as a reproduction condition good stewardship ... reproduction in capitalism According to Marx, in a capitalist society economic reproduction is conditional on capital accumulation . If workers fail to produce more capital, economic reproduction begins to break down. Therefore, economic reproduction in capitalist society is necessarily expanded reproduction and requires market growth. Capital must grow, otherwise the process breaks down. Thus ... growth or no growth , but about the kind of growth that is best for the enlarged reproduction of the human ... amounts. In considering the economic reproduction process as a whole, one therefore has to consider ... of reproduction schemes when he modelled the circulation of capital through the constant transformations ...   more details



  1. Plant reproduction

    Plant reproduction is the production of new individuals or offspring in plant s, which can be accomplished by sexual or asexual means. Sexual reproduction produces offspring by the fusion of gamete s, resulting in offspring genetically different from the parent or parents. Asexual reproduction produces ... seed , which is used as an agent of dispersal. Asexual reproduction Plants have two main types of asexual reproduction in which new plants are produced that are genetically identical clone s of the parent individual. Vegetative reproduction involves a vegetative piece of the original plant budding ... reproduction, and in some cases involves seeds. Apomixis occurs in many plant species and also in some ... . Natural vegetative reproduction is mostly a Biological process process found in herbaceous plant ... vegetative reproduction, do so as a means to perennialize the plants, allowing them to survive ... in a location through vegetative reproduction of individuals constitutes a clonal colony , a single ... colony. The distance that a plant can move during vegetative reproduction is limited, though some ... a few growing seasons. In a sense, this process is not one of reproduction but one of survival and expansion ... and remains intact, the process is called vegetative growth . However, in vegetative reproduction ... disadvantage to vegetative reproduction, is the transmission of pathogens from parent to daughter ... isbn 978 0 226 26554 4 pages 359 ref Seeds generated by apomixis are a means of asexual reproduction ... Citrus and Kentucky blue grass Poa pratensis all use this form of asexual reproduction. Pseudogamy ... The rhizome is a modified underground stem serving as an organ of vegetative reproduction, e. g. Polypody ... s are important vegetative reproduction organs in some species, such as the strawberry , numerous .... A form of budding called Basal shoot suckering is the reproduction or regeneration biology ... . Another type of a vegetative reproduction is the production of bulb s. Plants like onion Allium ...   more details



  1. Sexual reproduction

    Sexual reproduction is the creation of a new organism by combining the Genetics genetic material of two ... reproduction is a major puzzle. The first fossil ized evidence of sexually reproducing organism ... 2 ref Sexual reproduction is the primary method of reproduction for the vast majority of macroscopic ... between two bacteria , is often mistakenly confused with sexual reproduction, because the mechanics are similar. A major question is why sexual reproduction persists when parthenogenesis appears in some ways to be a superior form of reproduction . Contemporary evolutionary thought proposes some explanations ... allows. Alternatively, sexual reproduction may allow for the Muller s ratchet ratcheting of evolutionary ... thumb 250px right In the first stage of sexual reproduction, meiosis, the number of chromosomes is reduced ... Plant reproduction Animals typically produce male gametes called sperm, and female gametes called eggs ... s use other means of sexual reproduction. Ferns Ferns mostly produce large diploid sporophyte ... and Vegetative reproduction vegetatively . They are small plants found growing in moist locations and like ferns, have motile sperm with flagella and need water to facilitate sexual reproduction. These plants ... 290 isbn ref Fungi Fungi are classified by the methods of sexual reproduction they employ. The outcome of sexual reproduction most often is the production of resting spore s that are used to survive inclement times and to spread. There are typically three phases in the sexual reproduction of fungi ..., and most insect species use sex for reproduction, though some species are facultatively parthenogenetic ... Guinea , lay egg biology egg s. They have one opening for excretion and reproduction called the cloaca ... 20Marsupial 20Rep Iowa State University Biology Dept. Discoveries about Marsupial Reproduction Anna ... www.seaworld.org animal info info books bony fish reproduction.htm BONY FISHES Reproduction Bot generated ... One fish species does not reproduce by sexual reproduction but uses sex to produce offspring Poecilia ...   more details



  1. Fragmentation (reproduction)

    Other uses Fragmentation disambiguation Fragmentation or Clonal Fragmentation is a form of asexual reproduction or cloning where an organism is split into fragments. The splitting may or may not be intentional. Each of these fragments develop into mature, fully grown individuals that are a clone of the original organism. If the organism is split any further the process is repeated. Fragmentation is caused by mitosis. Meiosis is not involved in fragmentation. Fragmentation is seen in many organisms such as mold s, some annelid worms, and sea star s. Binary fission of single celled organisms such bacteria , protozoa and many algae is a type of fragmentation. Molds, yeast , and mushroom s, all of which are part of the Fungi kingdom biology kingdom , produce tiny filaments called hypha e. These hyphae obtain food and nutrients from the body of other organisms to grow and fertilize. Then a piece of hyphae breaks off and grows into a new individual and the cycle continues. Fragmentation is observed in nonvascular plants as well, liverworts and mosses. Plants Fragmentation is a very common type of vegetative reproduction in plant s. Many tree s, shrub s, nonwoody Perennial plant perennials , and fern s form clonal colony clonal colonies by producing new rooted shoots, which increases the diameter of the colony. If a rooted shoot becomes detached from the colony,then fragmentation has occurred. There are several other mechanisms of natural fragmentation in plants. A few plants produce adventitious plantlets on their leaves, which drop off and form independent plants, e.g. Tolmiea menziesii and Kalanchoe daigremontiana . Some woody plants naturally shed twigs, termed cladoptosis , e.g. ..., and Braatne, J.H. 2003. Branch propagation, not cladoptosis, permits dispersive, clonal reproduction ... , and Caulastrea among many others. Disadvantage of this process of reproduction As this process is a form of asexual reproduction, it does not produce genetic diversity in the offspring. Therefore ...   more details



  1. Dinosaur reproduction

    Dinosaur reproduction was sexual, with newborns hatching from eggs. Medullary bone A discovery of features in a Tyrannosaurus Tyrannosaurus rex skeleton recently provided more evidence that dinosaurs and birds evolved from a common ancestor and, for the first time, allowed paleontologists to establish the sex of a dinosaur. When laying eggs, female birds grow a special type of bone between the hard outer bone and the Bone marrow marrow of their limbs. This medullary bone, which is rich in calcium , is used to make eggshells. The presence of endosteally derived bone tissues lining the interior marrow cavities of portions of the Tyrannosaurus rex specimen s hind limb suggested that T. rex used similar reproductive strategies, and revealed the specimen to be female. ref name schweitzeretal2005 Further research has found medullary bone in the theropod Allosaurus and the ornithopod Tenontosaurus . Because the line of dinosaurs that includes Allosaurus and Tyrannosaurus diverged from the line that led to Tenontosaurus very early in the evolution of dinosaurs, this suggests that dinosaurs in general produced medullary tissue. Medullary bone has been found in specimens of sub adult size, which suggests that dinosaurs reached sexual maturity rather quickly for such large animals. ref name LW08 Ornithopod reproduction Hadrosaur reproduction In the Dinosaur Park Formation File Gryposaurus BW.jpg thumb right 150px The head of Gryposaurus notabilis . In 2001 Darren H. Tanke and M. K. Brett Surman reviewed and described eggshell and hatchling material from the Dinosaur Park Formation of Dinosaur Provincial Park . ref name hadro egg abs 206 Eggshell is rare in the Park, being present in only two microfossil sites, both of which are predominated by the preserved shells of invertebrate life. ref name hadro egg abs 206 The survival of hadrosaur eggshell fragments in the presence of these invertebrate shells may be result of calcium in the invertebrate shells buffering contemporary acidic ...   more details



  1. Endocrinology of reproduction

    and Human Reproduction. New York, John Wiley and Sons, 1974, pp 219 238. ref ref Zeleznik, A., Fairchild ... in higher primates. In Knobil E ed . The Physiology of Reproduction. New York, Raven Press, 1994 ...   more details



  1. Canine reproduction

    that the male s penis expands. Canine reproduction is different from human sexual intercourse ... Calculator Dog nav DEFAULTSORT Canine Reproduction Category Dogs Category Dog breeding Category Dog health Reproduction Category Reproduction de L ufigkeit ...   more details



  1. File:Reproduction of the treachery of images.png

    Summary this is a reproduction of the pipe pictured in the treachery of images by Ren Magritte Licensing PD self date July 2008 ...   more details



  1. Legal Education and the Reproduction of Hierarchy

    Infobox Book See Wikipedia WikiProject Novels or Wikipedia WikiProject Books name Legal Education and the Reproduction of Hierarchy title orig translator image File Legal Education and the Reproduction of Hierarchy.jpg image caption author Duncan Kennedy illustrator cover artist country United States language English language English series genre publisher release date english release date media type pages isbn oclc preceded by followed by Legal Education and the Reproduction of Hierarchy full title Legal Education and the Reproduction of Hierarchy A Polemic Against the System is an essay by Duncan Kennedy on legal education in the United States of America. The work is considered a critique of American legal education and argues that legal education reinforces class, race, and gender inequality. Kennedy proposes that the system of legal education should be changed Publication history The article was first self published as a pamphlet in 1983. ref http duncankennedy.net documents Photo 20articles LEHR Introduction.pdf ref The pamphlet was subsequently reviewed in several major law journals. See also Critical Legal Studies References references External links http duncankennedy.net documents Photo 20articles Legal 20Education 20and 20the 20Reproduction 20of 20Hierarchy J. 20Leg. 20Ed..pdf Legal Education and the Reproduction of Hierarchy DEFAULTSORT Legal Education And The Reproduction Of Hierarchy Category Philosophy of law Category Legal education in the United States Category Critical legal studies ...   more details



  1. Reproduction, Fertility and Development

    Infobox Journal title Reproduction, Fertility, and Development cover editor discipline Reproductive Medicine language English abbreviation Reprod Fertil Dev publisher CSIRO Publishing country Australia frequency history Established 1989, Continues in part Australia journal of biological sciences. Continues Clinical reproduction and fertility openaccess license impact impact year website link1 link1 name link2 link2 name RSS atom JSTOR OCLC LCCN CODEN ISSN 1031 3613 eISSN Reproduction, Fertility, and Development is an academic journal concerned with reproductive medicine. NLM ID 8907465 med journal stub Category Publications established in 1989 Category CSIRO Publishing academic journals ...   more details




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