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Topic: Protozoan

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	Highbeam Encyclopedia - Search Results for protozoan
		The taxonomic relationships of protozoans to one another and to other protists continue to be revised.
		The term protozoan (or the collective plural protozoa) continues to be used informally; the organisms are now more commonly placed in...
		Protozoan Chosen for Genome Sequencing; Choice Result of Proposal by UC Santa Barbara Professor.
	www.encyclopedia.com /SearchResults.aspx?Q=protozoan (694 words)

	protozoan - HighBeam Encyclopedia
		protozoan, informal term for the unicellular heterotrophs of the kingdom Protista.
		Protozoans comprise a large, diverse assortment of microscopic or near-microscopic organisms that live as single cells or in simple colonies and that show no differentiation into tissues.
		Organelles, or intracellular structures, carry out a variety of functions, such as digestion, excretion, respiration, and coordination of movement; some protozoans are much more complex in their internal structure than are the cells of multicellular animals.
	www.encyclopedia.com /doc/1E1-protozoan.html (781 words)

	preap protozoan study guide
		Protozoans that move by extending lobes of cytoplasm are called _______________________________.
		The protozoans that have NO structures for movement, and lives by being a parasite in animals are the ______________________________.
		Protozoan habitats are characterized by the presence of _______________________.
	sps.k12.ar.us /massengale/preap_protozoan_study_guide.htm (747 words)

	Diameter of a Protozoan
		In the blood, the protozoan multiplies and causes septicemia (blood infection) and fevers as the host immune system responds and attempts to kill the pathogen.
		Spread is by infected mosquitoes, where the protozoan resides in the salivary glands of the bug.
		Upon biting a host, the protozoan enters the circulation where it alternates between infecting and lysing red blood cells and liver hepatocytes.
	hypertextbook.com /facts/2001/GennadiyZemel.shtml (601 words)

	Anaerobic Biodegradation in Contaminated Aquifers: Inlfuence of Protozoan Predation and Iron Bioavailability
		To evaluate the effect of protozoan predation on aerobic biodegradation rates, a sediment extract was fed a mixture of benzene, toluene, ethylbenzene, and xylene isomers (BTEX); and the extract then was incubated aerobically with and without protozoan inhibitors.
		The effect of protozoan predation on anaerobic biodegradation rates was evaluated in macrocosms (1 kg sediment and 600 mL liquid) that were repeatedly fed benzaldehyde over a 1000-hour period.
		In macrocosms containing the protozoan inhibitor cycloheximide, the number of total anaerobes and iron reducers was higher than in macrocosms that did not receive the inhibitor.
	www.ncsu.edu /ncsu/wrri/reports/report324.html (534 words)

	Protozoan - by Jacob Eapen (Site not responding. Last check: 2007-10-16)
		The word protozoa means "any of the singled-cell, usually microscopic organisms of the phylum or subkingdom Protozoa, which includes the most primitive forms of animal life." Protozoan comes from the New Latin word Protozoa which was formed by the word proto, which means first, and zoan which means animal.
		Some of the locomotive structures protozoans have are pseudopods, cilia, and flagella.
		Protozoans can be useful and not useful for man. Some cause disease, others do not harm man, and others feed on dead plants and other small protozoans, helping to continue the food chain.
	www.eapen.com /jacob/report/protozoan.html (265 words)

	[No title]
		The second portion of VPARA 5333 is concerned with those protozoan organisms that infect man and animals.
		Unlike amoebae that require a substrate on which to move, flagellates are well adapted to liquid medium and thus are found in blood, lymph, cerebrospinal fluid, etch of the hosts that they infect.
		Some species have developed a parasitic mode of existence in various tissues and organs of animals and it is these that we will discuss in the next section.
	www.cvm.okstate.edu /instruction/kocan/vpar5333/5333iia.htm (870 words)

	protozoan
		Today, protozoans are grouped in the Kingdom Protista as animal like protists.
		A convenient way to classify protozoans is based on the way they move.
		Certain protozoan species also sense physical and chemical changes or obstacles in their environment.
	www.daviddarling.info /encyclopedia/P/protozoan.html (478 words)

	Amazon.com: "protozoan biomass": Key Phrase page (Site not responding. Last check: 2007-10-16)
		Protozoan biomass is comparable to that of earthworms, so they are important in controlling bacterial and fungal numbers in the soil, and...
		In both clear wa- ter and hlackwater streams, flagellates domi- nate the protozoan biomass and grazing (Bott and Kaplan 1989, Carlough and Meyer 1989).
		A few authors have expressed concern about the extent of faunal contributions to the fumigation "flush." Protozoan biomass may be a significant contributor in some soils (Ingham and Horton, 1987), but usually constitutes less than 2% of total...
	www.amazon.com /phrase/protozoan-biomass (572 words)

	Books on Protozoan Conditions - WrongDiagnosis.com
		Observations on the biology of the Protozoan Gromia oviformis Dujardin, (University of California publications in zoology, v.
		The composition and distribution of the protozoan fauna of the soil (Biological monographs and manuals)
		The protozoan parasites of domesticated animals (U.S. Dept. of Agriculture.
	www.wrongdiagnosis.com /p/protozoan_conditions/books.htm (1892 words)

	External Protozoan Diseases of Fish
		This disease is caused by a group of peritrichal ciliated protozoans.
		This ciliated protozoan is primarily a free-living protozoan that lives on aquatic plants and is believed to be an opportunist.
		This disease is caused by the ciliated protozoan Apiosoma that has a barrel shaped body with cilia at the distal end and a large rounded macronucleus.
	www.cichlid-forum.com /articles/diseases_ext_protozoan.php (1070 words)

	protozoan - Search Results - MSN Encarta
		Protozoa, collective name for animal-like, single-celled organisms, some of which may form colonies.
		Giardiasis, infection of the small intestine caused by the parasitic protozoan Giardia lamblia.
		amoeba, bacteriophage, bacterium, botulinum, candida, ciliate, coccus, E. coli, flagellate, listeria, mycoplasma, protozoan, rhizopod, salmonella,...
	encarta.msn.com /protozoan.html (107 words)

	Protozoan Disease : by Ray Sahelian, M.D. natural treatment
		More than 70 species of protozoan and helminth parasites can reach humans by food and water.
		However, massive but unseen amounts of feces from humans, their pets, and their domesticated animals are discharged, dumped, or carried in runoff, bringing encysted zoonotic protozoan parasites to estuaries and coastal waters.
		Here, they contaminate bathing beaches, are filtered and concentrated by shellfish eaten by humans and marine mammals, and infect a wide range of marine animal hosts.
	www.raysahelian.com /protozoan.html (950 words)

	EPA Protozoan Method Development Stakeholder Meeting - December 16, 1997
		EPA held a public meeting on December 16, 1997, in Washington, D.C., to discuss drinking water protozoan analytical methods.
		EPA presented an overview of how ongoing EPA drinking water activities and the Protozoan Method Development meetings, in particular, relate to the 1996 Amendments to the Safe Drinking Water Act.
		As mentioned earlier, the ICR method has a number of limitations (i.e., low recovery efficiencies, precision, accuracy and wide intra- and inter-laboratory variability) and is therefore not believed to be an adequate method to determine necessary treatment levels.
	www.epa.gov /ogwdw/ndwac/sum_pmd1.html (1057 words)

	Tortoise Trust Web - Protozoan infections in Chelonians.
		Both flagellate and ciliate protozoan organisms are frequently detected in chelonians.
		Protozoan organisms can represent a major hazard to captive collections of chelonia but not all occurrences are pathogenic, especially where Trichomonads are concerned.
		Good hygiene is the best prevention and all cages should be kept scrupulously clean with adequate attention paid to food handling and feeding routines.
	www.tortoisetrust.org /articles/proto.html (1594 words)

	Vectors of Protozoan Parasites
		Vector transmission is the other strategy used by protozoan parasites which inhabit the blood or internal tissues within its host.
		Two routes have been proposed: 1) the classical route in which the parasite 'backtracks' through the digestive system and migrates up the salivary duct, or 2) the direct route in which the parasite penetrates the peritrophic membrane and gut epithelium to gain access to the hemolymph.
		Either route presents barriers and illustrates the complex interactions between the protozoan parasite and vector (Figure).
	www.tulane.edu /~wiser/protozoology/notes/vector.html (1853 words)

	Leishmaniasis
		The sandfly is referred to as the disease vector, simply meaning that the infectious agent (the protozoan) is carried by the sandfly and passed on to other animals or humans in whom the protozoan will set up residence and cause disease.
		The animal or human in which the protozoan then resides is referred to as the host.
		Once the protozoan is within the human host, the human's immune system is activated to try to combat the invader.
	www.healthatoz.com /healthatoz/Atoz/ency/leishmaniasis.jsp (1691 words)

	The Protozoan Neospora caninum Directly Triggers Bovine NK Cells To Produce Gamma Interferon and To Kill Infected ...
		The Protozoan Neospora caninum Directly Triggers Bovine NK Cells To Produce Gamma Interferon and To Kill Infected Fibroblasts -- Boysen et al.
		experimental infection of NK cells with a protozoan parasite.
		Role of natural killer cells in innate resistance to protozoan infections.
	iai.asm.org /cgi/content/full/74/2/953 (4861 words)

	Protozoan houses
		In fact, one can place a specimen slide on the stage, cross the polars so that the background field is dark, and then scan the slide.
		Nomarski DIC is especially valuable for examining delicate membranous houses, such as those found in certain collar flagellates or in some species of Stentor.
		I strongly recommend trying out a variety of contrast methods when looking at such protozoan "houses".
	www.microscopy-uk.org.uk /mag/artdec98/rhprot.html (2329 words)

	A protozoan undergoes "binary fission" - with some help!
		These images, captured from video using a Snappy video grabber, illustrate the final stages of protozoan asexual reproduction (a process known as "binary fission").
		Sexual reproduction allows for the mixing of DNA among the various strains (asexual daughters) of a local protozoan population.
		Shuffling the deck in this manner produces cells which are genetically different from each other, an important characteristic as genetic make-up determines how cells respond to their environment.
	www.microscopy-uk.org.uk /mag/art98/celldiv.html (268 words)

	protozoan - OneLook Dictionary Search
		Protozoan : Online Plain Text English Dictionary [home, info]
		Phrases that include protozoan: flagellated protozoan, flagellate protozoan, protozoan infections, antibodies protozoan, animal protozoan infections, more...
		Words similar to protozoan: protozoal, protozoic, protozoon, ameba, more...
	www.onelook.com /?w=protozoan (267 words)

	Poultry: Protozoan diseases - Coccidiosis
		Blackhead is an acute or chronic protozoan disease of fowl, primarily affecting the cecae and liver.
		The disease is present wherever poultry are raised.
		Blackhead is caused by a protozoan parasite called Histomonas meleagridis.
	msucares.com /poultry/diseases/disproto.htm (1499 words)

	bacteria vs. protozoan
		For the corresponding "live" discussions, post in the active topic forum here.
		Most antibacterial drugs (antibiotics) will kill bacteria but not eukaryotic organisms (protozoans).
		Please follow the guidelines set forth in the Suite101 Posting Etiquette when adding to the discussion.
	www.suite101.com /discussion.cfm/microbiology/48900 (168 words)

	Protozoan Conditions - WrongDiagnosis.com
		Join in at the Protozoan Conditions forums - ask a question or share an experience.
		For general information about Protozoan Conditions see our basic information pages.
		You may also want to research other symptoms in our Symptoms Center.
	www.wrongdiagnosis.com /p/protozoan_conditions/intro.htm (391 words)

	Nano springs eternal; Protozoan 'engine' posts nano records
		Nano springs eternal; Protozoan 'engine' posts nano records
		He observed the rapid contraction of a stalk tethering the cell body of a tiny protozoan, Vorticella convallaria, to the surface of a leaf.
		Little did van Leeuwenhoek imagine that more than 300 years later, the biological spring that drives Vorticella would set records for speed and power in the nano world of cellular engines.
	www.eurekalert.org /pub_releases/2005-12/asfc-nse112905.php (486 words)

	Protozoan Classification
		Although the protozoans used to be lumped into four groups based on their type of locomotion (i.e., whether they are propelled by flagella, cilia, pseudopodia or those forms that lack locomotor organelles), the Society of Protozoologists published a classification of the protozoa in 1980 that recognizes seven phyla.
		More recently, evidence from ribosomal RNA has once again challenged our concepts of the phylogenetic relationships among protozoan groups and has forced a revision in protozoan classification.
		Accordingly, this website will avoid the issue of protozoan taxonomy and discuss these organisms under the traditional four informal headings: flagellates, amebas and their relatives, ciliates and parasitic apicomplexans that lack locomotor organelles.
	bioweb.uwlax.edu /zoolab/Table_of_Contents/Lab-2a/Classification-02a/classification-02a.htm (158 words)

	The Protozoan-Metazoan Boundary
		The associated interdisciplinary discussion will highlight these and other topics; your active participation is most welcome.
		On-Line NetForum on the Protozoan and Metazona Boundary
		Important References on the Protozoan and Metazoan Interphase
	shum.huji.ac.il /~por/icz_xviii/protozoa.html (408 words)

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