bacterial filter
A Dictionary of Food and Nutrition
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2005
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© A Dictionary of Food and Nutrition 2005, originally published by Oxford University Press 2005. (Hide copyright information)
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bacterial filter A filter fine enough to prevent the passage of
bacteria (0.5–5 μm in diameter), which permits removal of bacteria from solutions. Viruses are considerably smaller, and will pass through a bacterial filter.
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Reports from University of Sydney add new data to research in biology.
Newspaper article from: Science Letter; 5/19/2009; 700+ words
; ...has formed into two lateral coeloms and an anterior coelom. The primary podia form from...and hydropore. The anterior coelom forms the coelom of the brachia," wrote V...described and extended to coeloms of other deuterostome phyla...
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Reports outline developmental science study findings from Indiana University.(Report)
Newspaper article from: Health & Medicine Week; 2/16/2009; 697 words
; ...the timing of the formation of the left coelom and initiation of adult development...responsible for the development of the left coelom and adult structures are associated with...erythrogramma. We present evidence that left coelom formation in H. erythrogramma, which...
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Waveform dynamics of spermatozeugmata during the transfer from paternal to maternal individuals of Membranipora membranacea.
Magazine article from: The Biological Bulletin; 2/1/2004; ; 700+ words
; ...membranacea migrate into the perivisceral coelom from the peritoneum of the body wall...membranacea are motile in the paternal coelom, like sperm of other gymnolaemate bryozoans...become positioned in the perivisceral coelom between the body wall and the distomedial...
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Off to the (earthworm) races: A quick & flexible lab experiment for introductory zoology courses
Magazine article from: The American Biology Teacher; 10/1/2001; ; 700+ words
; ...a fluid-filled body cavity (the coelom), segments (metamers), a nervous...setae). With segments partitioning the coelom and segmental ganglia lending local...have no "anchors," and possess a coelom but only longitudinal muscles. Bivalves...
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Gamete spawning and fertilization in the gymnolaemate bryozoan Membranipora membranacea.
Magazine article from: The Biological Bulletin; 10/1/1994; ; 700+ words
; ...for oocytes from the maternal visceral coelom to the external seawater. For E. posidoniae...crustulenta is external to the maternal coelom, occurring while oocytes are in either...Membranipora membranacea is within the maternal coelom, whereas the site of egg activation is...
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Coelomic cavities may function as a vascular system in amphioxus larvae.
Magazine article from: The Biological Bulletin; 12/1/1998; ; 700+ words
; ...FOR FIGURE 1A OMITTED] that the ventral coelom, a longitudinally extensive cavity...FOR FIGURE 1A OMITTED]. The ventral coelom is lined by a sheet of very narrow epithelial...blood vessel, but rather the ventral coelom. The occurrence of peristaltic contractions...
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Madreporite function and fluid volume relationships in sea urchins.
Magazine article from: The Biological Bulletin; 12/1/1996; ; 700+ words
; ...diverted from the water vascular system to the perivisceral coelom, thus maintaining the fluid volume of the flexible body...displacement of their associated ampullae into the perivisceral coelom would not impart too much pressure on the peristome
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SECOND-TRIMESTER DIAGNOSIS OF LIMB-BODY WALL COMPLEX WITH LITERATURE REVIEW OF PATHOGENESIS
Magazine article from: Genetic Counseling; 1/1/2007; ; 700+ words
; ...oligohydramnios, renal defects, persistence of the extraembryonic coelom and oligohydramnios. Among them, 4 had left lower limb anomaly...defects, amniotic bands and lack of persistence of extraembryonic coelom. All pregnancies were terminated. Table I summarizes the perinatal...
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Autofluorescence in eleocytes of some earthworm species
Magazine article from: Folia Histochemica et Cytobiologica; 1/1/2006; ; 700+ words
; ...encapsulation of invading bacteria and particulate waste products. The coelom communicates with the outer environment directly by dorsal pores...Perhaps amoebocytes derive from the mesenchymal lining of the coelom [9] while ele-ocytes originate by the detachment of chloragogen...
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Discovery of miniature bilaterians rewriting evolutionary history
Newspaper article from: China Daily; 6/14/2004; ; 700+ words
; ...microscope a life-form 580 million years old, with one pair of coeloms - internal cavities - and symmetrically arranged sensory pits...officially named "Vernanimalcula guizhouena," has paired coeloms extending the length of the gut and paired external pits that...
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coelom
Book article from: The Columbia Encyclopedia, Sixth Edition
coelom , fluid-filled body cavity, found in...and an inner layer, the endoderm . The coelom then forms as a result of the splitting...and the spaces within these folds form the coelom. The structure of the embryonic coelom...
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Body Cavities
Book article from: Animal Sciences
...secondary body cavity, or coelom, and consequently these...characteristics of true coeloms. Finally, several animal...cavity known as a true coelom . These phyla are known...pseudocoelom and the coelom are fluid-filled body...characterized by pseudo-coeloms. These include the roundworms...
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Annelida
Book article from: The Columbia Encyclopedia, Sixth Edition
...the body wall by the body cavity, called the coelom . The segmented compartments of the coelom are usually separated from each other by thin...blood vessels. Except in the leeches, the coelom is fluid filled and functions as a skeleton...
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haemocoel
Book article from: A Dictionary of Zoology
haemocoel A body cavity, containing blood, which has the same embryonic origins as the blood-vascular system (i.e. it is not a coelom ). Functionally, it replaces the coelom as the main body cavity and hydrostatic skeleton but it does not contain gametes .
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Hertwig, Karl Wilhelm Theodor Richard von
Dictionary entry from: Complete Dictionary of Scientific Biography
...two Hertwigs, in a series of studies, formulated their “ coelom theory ” to account for the classification and phylogeny of metazoan animals. The coelom is still used as an important taxonomic criterion. During the next decade...
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