Browsing by Subject "Biology"
Now showing items 1-20 of 101
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(Texas A&M University. Libraries, 1976)The distributions, relative and seasonal abundances, and population structures of the species of mysids were sampled for 2 years in the < various habitats in the shallow waters of Galveston Island, Texas. From February, ...
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(Texas A&M University. Libraries, 1962)
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(Texas A&M University. Libraries, 1990)Allomvces macroavnus is characterized by posteriorly uniflagellated reproductive cells. The flagellar apparatus consists of a functional kinetosome, nonfunctional centriole, anchoring struts, basal mitochondrion, and a ...
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(Texas A&M University. Libraries, 1981)Investigation of the ascorbic acid (AsA) status of the blue crab, Callinectes sapidus, and the grass shrimp, Palaemonetes pugio, indicated that both organisms possess significant quantities of AsA and ascorbate 2-sulfate ...
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(2019-11-26)Hagfishes are capable of not only forming knots, but also sliding them along the length of their bodies. This remarkable behavior is used by the animal for a wide variety of purposes, such as feeding and manipulation. ...
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(2018-05-24)Textbook for Introductory Biology I. First half of an introdutory two-semester survey of contemporary biology that covers the chemical basis of life, structure and biology of the cell, molecular biology and genetics; ...
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(2018-05-24)Textbook for Introductory Biology II. The second half of an introductory two-semester survey of contemporary biology that covers evolution, history of life, diveristy and form and function of organisms; includes laboratory ...
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(Texas A&M University. Libraries, 1970)The primary productivity of a phyco-periphyton community in a spring fed pond was studied using the carbon-14 method, the oxygen method, and the rate of biomass increase. The contribution of the phyco-periphyton amounted ...
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(Texas A&M University. Libraries, )Inasmuch of prior zoogeographic surveys in Texas did not produce evidence for retaining the separate identity of six closely related digenetic trematode [i.e., Ochetosoma anairum (Leidy, 1891), O. acetabularis (Crow, 1913), ...
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(Texas A&M University. Libraries, 1976)Grass shrimp Palaemonetes pugio were capable of hypo- and hyperosmotic regulation of body fluids. Hemolymph chloride and osmotic concentrations were maintained at relatively stable levels over a wide salinity (S) range. ...
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(Texas A&M University. Libraries, 1981)The valve morphology of twenty four taxa of the genus Eunotia from Texas and Alaska was examined with the light and scanning electron microscopes with particular emphasis on the terminal nodules, raphe, hyaline areas, ...
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(2009-05-15)MicroRNAs are a large family of 21-26 nucleotide non-coding RNAs with a role in the post-transcriptional regulation of gene expression. In recent years, microRNAs have been proposed to play a significant role in the expansion ...
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(Texas A&M University. Libraries, 1976)Two populations of Cilbanarius vittatus (Bosc), the striped hermit crab, were sampled, one from Bolivar and the other from Port Isabel, Texas, in order to compare their degrees of polymorphism and heterozygosity with respect ...
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(Texas A&M University. Libraries, 1976)The purpose of this study was to determine the level of attainment as well as the ability of students to assimilate, at a level of concept mastery, three selected biology concepts. This research was evaluated in light of ...
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(Texas A&M University. Libraries, 1981)The spring and summer zooplankton community in East Lagoon, Galveston Island, Texas was similar to the summer assemblages of many U.S. estuaries. Species diversity was low and the crustacean zooplankton were dominated by ...
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(Texas A&M University. Libraries, 1974)The Mollusca of Lobos Reef (21°28'N, 97°13'W) 100km south-southeast of Tampico, Mexico, and Enmedio Reef (19°06'N, 95°56'W) 15 km southeast of Veracruz, were studied during late May and June 1973. Two hundred and ninety ...
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(Texas A&M University. Libraries, 1981)One thousand eight hundred thirty-seven fish representing nine families and 22 species from the Upper San Marcos River were examined for endohelminth parasites. Thirty-three species of endohelminths representing three phyla ...
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(Texas A&M University. Libraries, 1977)The enzymatic response of individual tissues are variable for acute salinity stress. Adductor muscle in all cases exhibited a predominant anaerobic pathway, but concomittant activity of enzymes such as GDH and GOT associated ...
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(Texas A&M University. Libraries, 1976)The effects were studied of a 24-hour exposure to a subacute concentration of parathion on the locomotor behavior of several freshwater fish. Firstly, the effects were determined of the exposure on the locomotor orientation ...