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| | Biological reproduction - Wikipedia, the free encyclopedia |
 | | Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction by an antecedent. | | | Asexual reproduction is not, however, limited to single-celled organisms. | | | In addition, sexual reproduction usually results in the formation of a life stage that is able to endure the conditions that threaten the offspring of an asexual parent. |
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http://en.wikipedia.org/wiki/Reproduction
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| | MSN Encarta - Heredity |
| | Asexual reproduction typically is a rapid and reliable method of reproduction. | | | Sexual reproduction results in offspring with diverse traits, and is the predominant form of reproduction among plants, animals, and most other organisms. | | | In contrast to asexual reproduction, sexual reproduction requires two parents. |
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http://encarta.msn.com/encyclopedia_761564762/Heredity.html
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| | Asexual Reproduction |
| | Cameron and Endean (1982) suggested that autotomy is an adaptation to predation and Birkeland et al (1982) observed autotomy in their study of asteroid predatory interactions. | | | The abundance of these species was not sufficient to allow analysis of the change in mean individual size. | | | An alternation of sexual and asexual activity has been observed in Nepanthia belcheri (Ottesen and Lucas, 1982). |
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http://www.charonia.com/charonia/chap7.htm
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| | lesson template |
| | Students are presented with a computer/library investigation concerning the evolution of sexual reproduction, evolutionary strategies behind a variety of reproduction behaviors, and the molecular mechanisms behind reproduction in a variety of organisms. | | | Lineages that are capable of both asexual and sexual reproduction (invertebrates, plants, fungi, etc.) get the best of both world in a sense, and can adjust their reproductive behaviors based on current environmental conditions. | | | Included in the prensentations may be the role that sexual / asexual reproduction plays in a variety of organisms within the chosen lineage. |
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http://www.bu.edu/lernet/GK12/ryan/StampWeb-Lessons/sex.html
(626 words)
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| | Introductory Biology Courseware (103)- Animal Reproduction and Development |
| | In contrast, in animals such as humans sexual reproduction involves courtship behavior, physiological and hormonal involvement, copulation, gestation, care of offspring, etc. The advantages and disadvantages of sexual phenomena, including reproduction, are opposite of those for asexual reproduction described above. | | | Finally, in adulthood, testosterone is continually secreted to maintain normal reproductive function, sperm production, and male sexual behavior. | | | Some dramatic examples are the palolo worm, grunion, etc. Behavioral involvement may also increase the likelihood of fertilization. |
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http://tidepool.st.usm.edu/crswr/103animalreproduction.html
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| | the REPRODUCTIVe system |
| | Costs of this process include the need for two individuals to mate, courtship rituals, as well as a number of basic mechanisms described later. | | | The mesoderm forms structures associated with movement and support: body muscles, cartilage, bone, blood, and all other connective tissues. | | | This class of STDs includes viral diseases that affect organ systems other than those of the reproductive system. |
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http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookREPROD.html
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| | Asexual Reproduction |
| | Any reproductive process that does not involve meiosis or syngamy is said to be asexual, or vegetative. | | | One positive aspect is that it can create individuals rapidly and in large quantities. | | | Gemma cups are an example of a dispersal structure that leads to a genetically identical organism. |
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http://www.ucmp.berkeley.edu/glossary/gloss6/asexual.html
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| | Asexual Reproduction |
| | Asexual reproduction is the formation of new individuals from the cell(s) of a single parent. | | | Under good conditions, both strains grow equally well. | | | Citrus trees and many other species of angiosperms use their seeds as a method of asexual reproduction; a process called apomixis. |
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http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/A/AsexualReproduction.html
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| | Sexual vs. Asexual Reproduction |
| | -Altruistic behavior - behavior that favors the reproductive success not of the individual, but of another member of the species - why it evolved i.e. | | | -Asexual reproduction - any means of multiplying that does not involve both egg and sperm or similar structures. | | | -Hermaphrodism - existence of reproductive organs of both sexes in the same individual Ex: plants, leaches, worms |
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http://www.snow.edu/~allans/biology1010/sexvasex.html
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| | asexual reproduction - Hutchinson encyclopedia article about asexual reproduction |
| | Asexual reproduction has advantages in that there is no need to search for a mate; every asexual organism can reproduce on its own. | | | Asexual processes include binary fission, in which the parent organism splits into two or more ‘daughter’ organisms, and budding, in which a new organism is formed initially as an outgrowth of the parent organism. | | | Asexual reproduction by means of spores is common in ferns and mosses. |
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http://encyclopedia.farlex.com/asexual%20reproduction
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| | Sexual/Asexual Reproduction |
| | Recognize and explain how certain traits are passed from parents to offspring. | | | As part of the activity, genotype and phenotype can either be taught or reviewed. | | | Students will understand reproduction and heredity of organisms. |
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http://www.usoe.k12.ut.us/curr/science/sciber00/7th/genetics/sciber/fnbgacti.htm
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| | reproduction on Encyclopedia.com |
| | Surfgrass (Phyllospadix torreyi) reproduction: reproductive phenology, resource allocation and male rarity. | | | Richard Herzog uses traditional techniques for his reproduction furniture. |
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http://www.encyclopedia.com/html/section/reproduc_AsexualReproduction.asp
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| | Asexual Reproduction |
| | However, it follows that asexual reproduction may be seen as a means of maintaining continuity. | | | The simplest organisms (Amoeba, bacteria, etc) may rely on asexual reproduction alone; but many organisms are able to use both methods, according to the requirements of their life-cycle. | | | Asexual reproduction differs from sexual reproduction in that it does not require 2 parents, and that special cells are not required. |
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http://www.biotopics.co.uk/pot/asex.html
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| | Asexual Reproduction |
| | Asexual reproduction can take place in a variety of ways. | | | Fragmentation: This type of reproduction would most likely occur in molds, yeast, and mushrooms, all of which are part of the Fungi family of organisms. | | | This type of reproduction in which one parent is involved in the production of an identical offspring is called asexual reproduction. |
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http://www.wsd1.org/southd/science/reproductions1/asexual_reproduction.htm
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| | The Open Door Web Site : Biology : Asexual Reproduction |
| | Asexual reproduction is also used by single-celled organisms and simple animals. | | | Sometimes male and female sexes are found in the same individual, such as the barnacle or the liverwort. | | | Asexual reproduction does not require sperms or eggs to be produced. |
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http://www.saburchill.com/ans02/chapters/chap049.html
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| | ./Reproduction/Coral/asexual |
| | The bad news might be that these species of coral only develop buds or repro- duce asexually when they sense that environmental conditions are not 100 % correct. | | | There are many corals similar > to acropora that are magnificient in color and shape. | | | If one aquarists could get one of > these types of stony corals to reproduce naturally, we may have "earned" > access to trying to breed others. |
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http://www.thekrib.com/Marine/asexual.html
(2655 words)
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| | Asexual Reproduction Biology, Pearson College |
| | However, when a very desirable combination of traits is found, sexual reproduction risks losing them in the randomness of the process. | | | Sexual reproduction allows genetic variation and allows the development of a population that is specifically adapted to its surroundings (and is therefore more likely to survive). | | | Asexual reproduction does not involve sex cells or gametes (produced through meiosis). |
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http://www.racerocks.com/biology/asex/asex.htm
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| | Sexual vs Asexual Reproduction |
| | Four general mechanisms involving sexual and asexual reproduction. | | | Sexual reproduction: Production of haploid gametes (by both sexes) & their union to form a zygote. | | | Asexual reproduction: The production of reduced (haploid) or unreduced (diploid) eggs. |
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http://www.bio.sdsu.edu/pub/tod/herpetology/lectures/reproduction/sld001.htm
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| | Asexual reproduction |
| | Often slower than asexual reproduction, and less reliable. | | | All of the methods described above (making sores and binary fission) are examples of ASEXUAL reproduction and no fertilization in involved. | | | Flowering plants have to sexually to make seeds however there are certain advantages to reproducing asexually, the main one being that it is a more rapid process. |
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http://www.mikecurtis.org.uk/asexual_reproduction.htm
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| | Asexual Reproduction |
| | In fact, the idea of absorbing energy from all the available resources to support and enhance the reproductive process is a basic element of nature. | | | The asexual method of reproduction is more prevalent than the sexual method due to its ability to survive under adverse conditions for extended periods. | | | Several of my critics contend that the fact that there are so many forms of asexual reproduction proves that only one swirl (or “loop”) is enough to support the creation of life. |
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http://www.grandunifiedtheory.org.il/reprod/aSexualP.htm
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| | Asexual Reproduction Cloning |
| | We welcome your feedback, your ideas are what makes this site work for you. | | | However cloning, or asexual propagation, has been common practice in the horticultural world for hundreds of years. | | | The thought usually conjures up some image of a Frankenstein like monster whose genetic structure has gone haywire during the cloning process. |
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http://www.simplyhydro.com/asexual_reproduction_cloning.htm
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| | World Builders 1 Chapter 4 Asexual Reproduction E Viau CSULA |
| | When we cut our fingers and the skin heals, the cells go through this same process. | | | As our hair grows, the cells are dividing asexually. | | | When our fingernails grow, there is asexual division again. |
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http://curriculum.calstatela.edu/courses/builders/lessons/less/les4/mitosis.html
(430 words)
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| | Asexual reproduction - EvoWiki |
| | Asexual reproduction can be adaptive because only a single organism is needed to accomplish it, which is especially useful when there is a small population of organisms to begin with. | | | Budding is the process by which offsprint grow from the parent. | | | This is in contrast to sexual reproduction, which involves multiple (usually two) parents. |
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http://wiki.cotch.net/index.php/Asexual_reproduction
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| | Asexual reproduction - Wikipedia, the free encyclopedia |
| | This form of reproduction is common among simple organisms such as amoeba and other single-celled organisms, although most plants produce asexually as well (see vegetative reproduction). | | | Asexual reproduction in liverworts: a caducuous phylloid germinating | | | Identical Twins are also a form of asexual reproduction in humans. |
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http://en.wikipedia.org/wiki/Asexual_reproduction
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| | Asexual reproduction |
| | Reproduction in which an organism produces one or more clones of itself, such as by fission or budding. |
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http://www.cartage.org.lb/en/themes/Reference/dictionary/Biologie/A/773.html
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| | Asexual Reproduction |
| | The process of asexual reproduction by transverse fission in Stichopus chloronot... | | | Re: What is the difference between sexual and asexual reproduction?... | | | Aspergillus asexual reproduction and sexual reproduction are differentially affe... |
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http://www.scienceoxygen.com/biology/239.html
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| | Asexual Reproduction |
| | Asexual reproduction is defined as the process by which a single organism, like a flower, produces another organism or organisms (another flower or flowers) identical to itself. | | | Asexual reproduction is not the only way plants can reproduce. | | | For example, here is a picture of a type of asexual reproduction. |
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http://www.ri.net/schools/Narragansett/NHS/PerEwebpage/asexrep.html
(154 words)
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| | Asexual reproduction (from plant) -- Encyclopædia Britannica |
| | Asexual reproduction is any reproductive process that does not involve meiosis or the union of nuclei, sex cells, or sex organs. | | | any of the systems, sexual or asexual, by which plants reproduce. | | | Studies the ecology, morphology, diversity, and reproduction of algae, fungi, macrophytes, and lichens, along with illustrations. |
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http://www.britannica.com/eb/article-66093
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| | ASEXUAL REPRODUCTION |
| | Asexual reproduction can allow a plant to grow rapidly when other plants need more time to develop from seeds | | | You have seen several examples of specialized structures that are modified for asexual reproduction (as well as other functions): | | | Asexual reproduction is the formation of genetically identical offspring from a single parent. |
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http://tecn.rutgers.edu/bio109/asexual.htm
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| | Lab 15 - Asexual Reproduction |
| | The basic life cycle of Cnidarians is an alternation between the asexually reproducing polyp stage and the sexually reproducing medusa stage. | | | This is an asexual means of replication in this solitary animal. | | | Two classes in the phylum Platyhelminthes consist of important parasites, and each practices a different form of asexual reproduction. |
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http://userwww.sfsu.edu/~biol240/labs/lab_15animallifecycles/pages/15asexual.html
(998 words)
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| | Asexual Reproduction Summary - Asexual Reproduction Information |
| | The adaptive advantage of asexual reproduction is that organisms can reproduce rapidly, and so colonize favorable environments rapidly. | | | Budding also occurs in flatworms, which divide into two and then regenerate to form two new flatworms. | | | Asexual reproduction, on the other hand, is the production of new cells by simple division of the parent cell into two daughter cells (called binary fission). |
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http://www.bookrags.com/sciences/genetics/asexual-reproduction-wog.html
(576 words)
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| | Sexual Versus Asexual Reproduction |
| | Asexual reproduction occurs when a single individual is the sole parent and passes on all its genes to its offspring. | | | Asexually produced offspring are genetically identical to the parent since they are derived by mitosis. | | | Sexual reproduction involves two parents giving rise to offspring that have unique combination of genes inherited from the two parents. |
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http://www.runet.edu/~rsheehy/genetics/Meiosis/B245OMeiAsex.html
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| | sponge |
| | The individual sponge is saclike in construction; water is drawn into its central cavity through many tiny holes in the body wall and expelled through a large opening at the top of the body. | | | Sexual reproduction gives rise to a free-swimming larva, which soon settles on a suitable substrate and develops into the adult form. | | | They show so little movement that until the 18th cent. |
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http://www.factmonster.com/ce6/sci/A0846329.html
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| | lessons on asexual reproduction |
| | List and describe methods of asexual reproduction used by simple multicellular organisms | | | List and describe methods of asexual reproduction used by one celled organisms | | | After reviewing these lessons, the student should be able to: |
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http://www.farrockbiology.com/new_page_4.htm
(44 words)
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| | Moss asexual reproduction |
| | Asexual reproduction, or vegetative reproduction, enables a single plant to rapidly colonise a large area. | | | Each is capable of giving rise to a new plant when detached. |
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http://www.sbs.auckland.ac.nz/info/schools/nzplants/moss_asexual.htm
(230 words)
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| | Asexual Reproduction |
| | Vegetative reproduction enables a plant that is well adapted to a particular environment to produce many genetically identical to itself. | | | Several of angiosperms produce tiny plants on their leaves or along their stems. | | | Grafting and Budding: Grafting and budding are used to reproduce seedless plants and varieties of woody plants that do not produce strong root stems. |
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http://www.ri.net/schools/Narragansett/NHS/PerDwebpage/asexual.html
(85 words)
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| | [No title] |
| | (13) Iwasa, Y. Theories on the evolutionary advantage of sexual reproduction. | | | Newsletter of Mathematical Society of Japan 5: 32-34. | | | (47) Iwasa, Y. Mathematical ecology for plant growth and reproduction. |
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http://bio-math10.biology.kyushu-u.ac.jp/~iwasa/kaisetsu-e.html
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| | Asexual reproduction in reptiles |
| | Has there been any recent discovery to explain why some species of lizard can reproduce asexually (without males)? | | | What genetic differences are there between subspecies of the same lizard species that can reproduce asexually and ones that cannot? |
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http://www.madsci.org/posts/archives/dec96/844956732.Zo.q.html
(50 words)
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| | Asexual/Sexual Reproduction |
| | Sexual reproduction ñ is reproducing having sex, the uniting or joining of a sperm (male) and egg (female) cell. |
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http://www.swanton.k12.oh.us/jh/sc7/ch10a.htm
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| | killing heidi |
| | ace mortgage, opal ring, daisy gun, disney recess, opaque projector, costume nerd, magdalene sister, xtreme strength, wonder bra, charlotte sting, concave mirror, nikki charm, asexual reproduction, tahiti honeymoon, professional mistress, chevy nomad, popcorn ball, spoon honda, pendleton blanket, masquerade costume, |
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http://killing-heidi.3qn.net
(252 words)
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