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| | What is Life? |
 | | Furthermore, in all practicality, cells in a body are controlled by the spirit of that body, and not by their own spirit, which makes them an inferior form of life. | | | It is true that a robot can be created to appear alive and even seem to have emotions and the ability to make conscious decisions, but the difference between animated objects and living beings, is that life can express emotions, it can make conscious decisions, and it is in fact, alive. | | | The brain does the same, and it also serves as the central nervous system, turning the senses into sensations, recording memories, processing and converting data, controling bodily functions and internal mechanisms, and maintaining the body in many different ways. |
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http://amichai.com/mustread/life.htm
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| | Chapter 7: Transitional Forms |
| | According to the theory of evolution, all life descended from the first single-celled organism, resulting in the diversity of life forms on the earth today, as well as the many forms that have suffered extinction. | | | From single-celled organisms to humans, the logical progression is demonstrated of how life evolved. | | | As further research has been done on organisms once thought to be transitional, some have been definitely disqualified from that category. |
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http://www.geocities.com/jansbiblenotes/evo7.htm
(3995 words)
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| | The Standards Site: Cells |
| | The survival of whole organisms depends on the successful working of all their parts. | | | It enables them to make greater sense of the organ systems and life processes that they study in some detail at Key Stage 3. | | | Respiration and photosynthesis are processes that involve energy transfer. |
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http://www.standards.dfes.gov.uk/keystage3/respub/scienceframework/science_at_ks3/5_ideas/cells
(534 words)
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| | Multi-cell Organisms |
| | Therefore, the therapeutic transplantation of new neurons to regions of the human brain that are responsible for more advanced brain functions may be counterproductive, but their transplantation to other regions, such as the sensory or motor systems of the brain, could have enormous clinical significance. | | | The associative cortex is involved with the conscious perception and identity of one's own body; in the planning of movement, spatial perception, orientation and imagination; and in spatial alertness. | | | In stark contrast to this, electrodes have been developed which are so fine that their tips can be inserted into single cells so that the firings of individual neurons in some brain location can be monitored. |
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http://universe-review.ca/F10-multicell.htm
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| | sciforums.com - The costa rican moth caterpillar |
| | A meaning and purpose for life cannot be found in a better understanding of humanity by an appreciation of fine art and good literature, by studying the history of civilization, by a closer examination of our own inner thoughts and feelings or in the comforting arms of a friend. | | | PS Robert - comments like "Conscious beings (such as our species) are of course superior to single cell organisms" need justifying in some objective way. | | | Better able to change into another species in an attempt to adapt to a changing environment. |
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http://www.sciforums.com/showthread.php?p=331460
(4299 words)
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| | Electronic Learning Marketplace: a lively center for the exchange of ideas and information about assessments and the ... |
| | This session will end with a group discussion of what was observed, hints for successful viewing, and questions which lead students to begin thinking about cells and their role within or as an organism. | | | During this lab session, students will be called to the teacher on an individual basis to demonstrate their ability to prepare wet and dry mount slides with coverslips. | | | This method is used for viewing living organisms. |
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http://www.elm.maine.edu/assessments/teacher/sketch.asp?indexID=149
(1891 words)
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| | BIOLOGY 102 Lecture Notes. Homeostasis |
| | The term homeostasis refers to the process of maintaining stable conditions inside living organism. | | | A stable internal environment must be maintained, even in the face of sudden changes in external conditions. | | | As a consequence, cartilage and tendons are very slow to heal from trauma. |
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http://www.sp.uconn.edu/~bi102vc/102su01offline/homeostasis.html
(833 words)
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| | Aquatic Invertebrates |
| | They have most of the bodily functions and behaviors of more familiar multi-celled organisms but they are performed on a much smaller scale. | | | The 4,000 to 5,000 species of this phylum are in some way related to moss and may not seem like animals at first. | | | The 30,000 or so protozoa have their unicellular structure in common. |
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http://cetus.ucsd.edu/people/Ana/inverts.htm
(2917 words)
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| | DNA - definition of DNA in Encyclopedia |
| | Organisms, on the other hand, are fantastically complex individually and widely diverse collectively. | | | As a result, such species may adapt more rapidly to avoid extinction. | | | Just how the presence of specific features in the molecular structure of chromosomes could produce traits and behaviors in living organisms was unimaginable at the time. |
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http://encyclopedia.laborlawtalk.com/DNA
(3223 words)
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| | NEURONAL DEVELOPMENT, EMOTION AND THOUGHT |
| | organisms could now control, coordinate and direct their behaviors in a | | | amygdala enabled the organism to monitor and test the external emotional | | | Even in the case of modern-day humans, all the tissues of our bodies are |
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http://www.whale.to/v/my5.html
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| | highli03 |
| | Characteristic movement called euglenoid movement, with many changes in shape as the organism spirals along. | | | A clear pellicle secreted by the ectoplasm helps with this shape change of the organism. | | | In contrast, there are many"traditional" terms to help us organize our thoughts: |
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http://www.biologie.uni-hamburg.de/b-online/library/crone/3050/highli03.html
(1207 words)
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| | PHL 130 - 7th Week |
| | This is necessary because all mammals are multi-celled, but not sufficient because there are thousands of multi-celled organisms that are not mammals. | | | Giving a condition that is necessary for something else (e.g., life, health) | | | For the sufficient but not necessary condition I found a quantity that some-but not all mammals share, and that isn’t shared by outside organisms. |
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http://www.msu.edu/~susse/Overheads7.htm
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| | [No title] |
| | The methods and conditions for biochemical purification of a polypeptide of the invention can be chosen by those skilled in the art, and purification monitored, for example, by an immunological assay or a functional assay. | | | All multi-celled organisms develop from a single cell by a complex process that coordinates the formation of particular tissues, structures and systems in the body to determine the morphology and function of the organism. | | | the''transmission of various signals from outside the organism to particular organs, tissues or systems, thereby allowing the organism to respond to external stimuli. |
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http://www.wipo.int/cgi-pct/guest/getbykey5?KEY=01/49714.010712&ELEMENT_SET=DECL
(11331 words)
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| | Untitled |
| | These multi-celled organisms act together with a single purpose in mind, their own survival. | | | And given the physical limits of our confinement to the earth, each of these entities must strive to act together towards the goal of our common survival. | | | Innate in each multi-celled organism on the earth is |
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http://www.cs.uic.edu/~ahill/phil.htm
(1011 words)
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| | Cycling through the Food Web |
| | However, recent advances in molecular-biological techniques are changing our views on the nature of diversity of microscopic organisms... | | | Although all are single-celled organisms, Protists and Monera are eukaryotes and prokaryotes, respectively. | | | These "overlaps" are based on similarities with organisms in these Kingdoms. |
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http://www.bigelow.org/bacteria/whittaker.html
(228 words)
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| | [No title] |
| | Two or more organs whose separate functions are integrated in the performance of a specific task are termed an organ system. | | | A cell may be defined as the smallest living unit that may live independently or as a part of an organism. | | | The theory purported to explain this is Spontaneous Generation. |
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http://www.selu.edu/Academics/Faculty/kbancroft/essential.doc
(1885 words)
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| | Human condition |
| | From these basic ideas all other biological concepts are derived. | | | Organisms range from viruses (which are not cells) to single-celled organisms to multi-celled organisms. | | | Most scientists believe that organisms can be analyzed by chemical and physical tools. |
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http://www.sinc.sunysb.edu/Stu/jchenowe/condition.html
(463 words)
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| | Living Things: Anatomy & Physiology |
| | To observe tiny organisms in their microworlds, you can use a microscope. | | | Some tiny organisms, called protists, are made of only one cell. | | | The smaller parts have different functions, but all of the parts work together to enable the individual to live and survive in its environment. |
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http://www.fi.edu/tfi/units/life/anatomy/anatomy.html
(457 words)
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| | Open Questions: Evolutionary history of animals |
| | "This page describes the geological and chronological settings of the Ediacaran forms, the range of morphologies of the fossils themselves, and concludes with some remarks about their relationships with other organisms." There are additional pages on Ediacaran paleontology and the Cambrian Explosion. | | | Within the domain of Eukarya (life forms based on cells having a nucleus), there are several subdivisions. | | | Animals -- multi-celled organisms dependent on other organisms to provide energy through their metabolism |
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http://www.openquestions.com/oq-bi012.htm
(848 words)
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| | The Evolutionary Development of Multicellular Organisms |
| | Previous life did not use sex as a means of reproduction | | | This is a prolonged example in evolution where characteristics within organisms are similar to that of whole organisms, as in the mitochondria example mentioned at the foot of the previous page. | | | This was the beginning of cell specialisation into tissues, where particular tissues could perform functions to the well-being of the organism at large. |
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http://www.biology-online.org/10/4_multi_cellular.htm
(545 words)
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| | OccultForums.com - DNA is a virus! |
| | The underlying theory has turned up in many journals. | | | There's no doubt it's controversial, but on a larger scale, it's getting more popular to say that evolution of multi-celled organisms stems from symbiotic relationships of eukaryotes...(maybe) anyway, single celled organisms that developed nuclei and so on. | | | A science fiction book I have been reading titled "Darwin's Children" by Greg Bear (2003) posits the controversial idea that Virii are responsible for some spontaneous and far reaching evolutionary steps in all multi-celled organisms. |
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http://www.occultforums.com/showthread.php?t=9086
(866 words)
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| | WILDLIFE OF NS GLOSSARY |
| | Threatened - likely to become endangered unless situation changes | | | Native - organism that occurs naturally in an area | | | Adaptation - change in structure, form, or function that produces a better adjustment of an organism to its environment |
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http://www.gov.ns.ca/NATR/WILDLIFE/wns/wns9.htm
(1257 words)
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| | Introduction to human parasitology |
| | Presence of infective organisms in the environment (i.e. | | | Human parasitology is the study of those organisms which parasitise humans. | | | An important consideration in human parasitology is that of zoonotic diseases - a human infection caused by an organism which occurs naturally in other animals and has 'crossed' into humans due to low host-specificity (it may be practical to define zoonotic organisms as a organisms that could survive in the absence of people). |
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http://www.eden.rutgers.edu/~tavisa/Human_parasitology.html
(982 words)
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| | Anti Essays : : The 5 Kingdoms of Life |
| | Most of its components are single-celled organisms, however some are multi-celled. | | | Most of its organisms are single-celled, with some exceptions being multi-cellular. | | | The Monera Kingdom, though not often recognized by all people, has a profound effect on all of our lives. |
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http://www.antiessays.com/print.php?eid=1345
(681 words)
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| | Viruses -- Biotechnology Stocks |
| | eukaryotes (multi-celled organisms and many single-celled organisms), whilst the term bacteriophage or | | | endocytosis, the process whereby cells take in material from the external environment. | | | Viruses are important to the study of molecular and cellular biology because they provide simple systems that can be used to manipulate and investigate the functions of many cell types. |
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http://www.biotech100.com/biotechnology_encyclopedia/virus.htm
(1876 words)
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| | Home |
| | As you know there are not only multi-celled organisms but also single-celled organisms. | | | Many of these single-celled, eukaryotic organisms called bacteria have a major effect on human systems. | | | Learning about cells and their roles in organisms is the first step to understanding the basic building blocks for life. |
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http://www.quasar.ualberta.ca/edse456/apt/webquests/antibacterial
(431 words)
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| | User Profile: David Rabahy |
| | Complex, multi-celled organisms might never have come to be. | | | I submit that for multi-celled organisms to have any chance at all to emerge, the environment may need to be relatively stable and nearly constant for a very long period of time. | | | Single celled life arises throughout the universe as a completely natural consequence of organic chemistry given even a minimally hospitable environment. |
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http://setiathome2.ssl.berkeley.edu/fcgi-bin/fcgi?cmd=view_feedback&id=7998
(475 words)
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| | Preservation Station: Animal Education |
| | The genetic material that controls cell function and that passes on the traits of parents to their offspring is located in a compartment called the nucleus. | | | The Kingdom Protista also includes one-celled organisms, but the amoebae and their relatives have compartmentalized cells. | | | There are in fact so many different organisms on Earth that it is an overwhelming task to try to make general statements about them. |
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http://www.fortheanimals.com/menu2/ed_main.htm
(598 words)
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| | Schizosaccharomyces pombe: Second yeast genome sequenced |
| | The findings are expected to help better understand the basic biology behind cancer and how cancer and other human diseases develop. | | | This makes both species complimentary model organisms for studying eukaryotes. | | | The findings will also allow researchers to find out more about the evolution of one-celled and multi-celled eukaryotic organisms compared to others such as bacteria, which do not have nucleated cells. |
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http://www.genomenewsnetwork.org/articles/03_02/s_pombe.shtml
(482 words)
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| | Unit Outline (template) |
| | All organisms on earth are organized based on similarities into smaller and smaller groups until you are left with a group of all the same type of organism. | | | Single celled organisms must be able to carry out all life processes in one cell. | | | The category of multicellular organisms can then be grouped in several different ways. |
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http://www.msu.edu/~steereel/class_unit.htm
(569 words)
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| | Life on Earth |
| | Eukaryotes may be single-celled organisms (such as Amoeba or Paramecium), multi-celled organisms (such as oak trees or humans), or at some intermediate stage of organization (like sponges or slime molds). | | | In this model, the earliest and most basic life forms are the Archaea: relatively simple, mostly chemautotrophic single-celled organisms. | | | Cladograms, or "trees of life," are appropriate phylogenetic schemes for metazoans (multi-celled eukaryotes) but sometimes misleading in other organisms. |
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http://www.palaeos.com/Kingdoms
(987 words)
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| | Museum Victoria [ed-online] Dinosaurs & Fossils - The History of Earliest Life |
| | Development of nucleated cells was an essential precursor to the appearance of multi-celled organisms. | | | The earliest organisms of which there is a fossil record are simple, primitive cells without a nucleus or other structures within them. | | | None of the organisms present in the Precambrian had developed hard skeletons or shells that would be readily preserved as fossils, and consequently their fossil record is very sparse. |
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http://www.museum.vic.gov.au/dinosaurs/lifetime-early.html
(792 words)
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| | State of New Zealand's Environment 1997 - Chapter 9: Introduction [Ministry for the Environment] |
| | Most biodiversity research focuses on species, either as the fundamental unit of study, or as the unit which enables other aspects of biodiversity to be studied (Wilson, 1992). | | | 80,000 known Protists (mostly single-celled organisms with a cell nucleus; broadly divided into: photosynthesisers, oralgae, some of which are multicellular; and non-photosynthesisers, or protozoa, such as ciliates, flagellates and amoeba); | | | A species is commonly defined as a group of organisms belonging to the same evolutionary lineage and capable of interbreeding under natural conditions. |
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http://www.mfe.govt.nz/publications/ser/ser1997/html/chapter9.3.html
(6047 words)
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| | Geologic Time |
| | By now, soft bodied multi-celled organisms with tissues and organs have developed. | | | Since the development of the first multi-celled organisms, life has become more complex. | | | At 1200 MY, there are cells with nuclei, and the first multi-celled organisms are beginning to form, although they are only very primitive colonies of single celled organisms. |
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http://www.trinity.edu/gkroeger/GEOS1304/Notes/geotime.htm
(1401 words)
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| | Evolution: Library: The Cambrian Explosion |
| | First, organisms may not have sequestered and secreted much in the way of fossilizable hard parts; and second, the environments in which they lived may have characteristically dissolved those hard parts after death and recycled them. | | | Even organisms that hadn't evolved hard parts, and thus didn't leave fossils of their bodies, left fossils of the trails they made as they moved through the Precambrian mud. | | | Recently, minute fossil embryos dating to 570 million years ago have also been discovered. |
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http://www.pbs.org/wgbh/evolution/library/03/4/l_034_02.html
(824 words)
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| | Mitosis and Cell Division Page |
| | In fact, cell division provides the central mechanism by which life has been passed on from cell to cell, and from organism to organism, for billions of years. | | | This video starts by emphasizing the central importance of cells in life, and that living cells can only arise from other living cells by cell division. | | | All phases of mitosis are shown and discussed in detail. |
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http://www.cytographics.com/resource/catalog/tapes/pg-cd.htm
(293 words)
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| | Cell division: mitosis and meiosis |
| | Occurs in somatic cells found throughout the body. | | | When the gametes (eggs and sperm) fuse in fertilization the diploid # is restored. | | | Ensures the same number and kind of chromosomes as the original cell. |
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http://www.biosci.ohiou.edu/introbioslab/Bios170/170_6/170_6.htm
(201 words)
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| | Aquatic Disease: |
| | Metabolites in the normal break-down process of the dead organism can be toxins in themselves. | | | This must be taken into account when treating systems. | | | These are released when the organism dies off. |
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http://www.athiel.com/lib10/drj4.htm
(1739 words)
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| | Kingdom Monera |
| | Prokaryotes are single-celled organisms that lack membrane-bound organelles and have a single chromosome containing all their DNA. | | | Prokaryotic cells are also smaller than eukaryotic cells, most measuring between 1-10 um. | | | Chloroplasts and mitochondria, allowing the conversion of light energy to potential, chemical energy and potential energy to chemical energy that the cell can use respectively, probably evolved from photoautotrophic and chemoautotropic prokaryotes ingested by early chemoheterotropic eukaryotic cells. |
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http://www.sidwell.edu/us/science/vlb5/Labs/Classification_Lab/monera.html
(526 words)
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| | Catholic Answers Forums - Catholics and evolution |
| | It is the variation of genetic material that is present in an organism. | | | However, evolution in general, as defined as the idea that life has become more complex over time, that single-celled organisms replicated and became multi-celled organisms, and that these multi-celled organisms became more specialized, can be rectified with the account of Genesis. |
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http://forums.catholic.com/showthread.php?t=2692
(3908 words)
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| | ProtestWarrior.com Forum |
| | Then somehow, these magical, mystical, single-celled eruptions of spontaneous life from rocks and water developed a magical "awareness" that they needed to preserve themselves--, they just "knew" to multiply into multi-celled organisms and they magically created in themselves the ability to do so. |
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http://forum.protestwarrior.com/viewtopic.php?t=54378&highlight=
(1811 words)
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