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Search Results for the EPA National Library Catalog
Items Found: 5590
Showing: Items 5451 - 5500
Your Search: (SUBJECT=biology)
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Title
Year Published
5451
Use of Ecoregions in Biological Monitoring.
1992
5452
Use of forest site index for evaluating terrestrial resources at risk from acidic deposition {microfiche}
1990
5453
Use of immunotoxicity assays in aquatic biology research.
1999
5454
Use of Limited Protocols to Evaluate the Genotoxicity of Hazardous Wastes in Mammalian Cell Assays: Comparison to 'Salmonella'.
1987
5455
Use of Molecular Negentropy to Encode Structure Governing Biological Activity.
1980
5456
Use of Perifusion to Evaluate Hormonal Release In vitro from Rat Pituitary and Hypothalamic Tissue.
1992
5457
Use of Periphyton in the Development of Biocriteria.
1994
5458
Use of Pesticides in Suburban Homes and Gardens and Their Impact on the Aquatic Environment.
1972
5459
Use of Primate Folliculogenesis Models in Understanding Human Reproductive Biology and Applicability to Toxicology.
1988
5460
Use of small otter trawls in coastal biological surveys /
1978
5461
Use of the Amphipod Crustacean 'Hyalella Azteca' in Freshwater and Estuarine Sediment Toxicity Tests.
1988
5462
Use of the Aquatic Oligochaete 'Lumbriculus variegatus' for Assessing the Toxicity and Bioaccumulation of Sediment-Associated Contaminants.
1993
5463
Use of the Grass Shrimp 'Palaemonetes pugio' in a Life-Cycle Toxicity Test.
1979
5464
Use of the mixed flask culture (MFC) microcosm protocol to estimate the survival and effects of microorganisms added to freshwater ecosystems /
1989
5465
Use of Whole Embryo Culture for Evaluating Toxicity and Teratogenicity.
1984
5466
User guide: acute to chronic estimation /
1999
5467
User's manual for the instream sediment-contaminant transport model SERATRA /
1982
5468
Uses of Environmental Maps in Determining Areas of Noncompliance.
1977
5469
Using reproductive and developmental effects data in ecological risk assessments for oviparous vertebrates exposed to contaminants /
1998
5470
Using the biological literature : a practical guide /
2002
5471
Using the DNA Alkaline Unwinding Assay to Detect DNA Damage in Laboratory and Environmentally Exposed Cells and Tissues.
1990
5472
Utility of Toxicity Tests to Measure Effects of Substances on Marine Organisms.
1982
5473
Utilization of a Response-Surface Technique in the Study of Plant Responses to Ozone and Sulfur Dioxide Mixtures.
1984
5474
Utilization of Trifluorothymidine (TFT) to Select for Thymidine Kinase-Deficient Mutants from L5178Y/TK Mouse Lymphoma Cells.
1981
5475
Validation of Protocols for Assessing Early Pregnancy Failure in the Rat: Clomiphene Citrate.
1991
5476
Validity of ambient toxicity tests for predicting biological impact, Ohio River, near Wheeling, West Virginia /
1986
5477
Validity of effluent and ambient toxicity tests for predicting biological impact, Kanawha River, Charleston, West Virginia /
1986
5478
Validity of effluent and ambient toxicity tests for predicting biological impact, Scippo Creek, Circleville, Ohio /
1985
5479
Validity of effluent and ambient toxicity tests for predicting biological impact, Skeleton Creek, Enid, Oklahoma /
1986
5480
Validity of effluent and ambient toxicity tests for predicting biological impact, Skeleton Creek, Enid, Oklahoma /
1986
5481
Validity of laboratory tests for predicting copper toxicity in streams /
1976
5482
Value of Multiple Endpoint Data in Reproductive Toxicology: Revelations in the Rat.
1988
5483
Variability and management of large marine ecosystems /
1986
5484
Variability of 'Stephanodiscus hantzschii Grun' (Ueber die Variabilitaet von 'Stephanodiscus hantzschii Grun').
1974
5485
Variability of crustacean zooplankton data generated by the Great Lakes National Program Office's annual water quality survey /
2003
5486
Variable Selectivity and the Role of Nutritional Quality in Food Selection by a Planktonic Rotifer.
1990
5487
Variation /
2005
5488
Vascular Aquatic Plants in Acid Mine Water of the Monongahela River, West Virginia.
1971
5489
Verhandlungen der Internationalen Vereinigung fèur Theoretische und Angewandte Limnologie.
1922
5490
Vertebral Abnormalities in Juvenile Inland Silversides 'Menidia beryllina' Exposed to Terbufos during Embryogenesis.
1990
5491
Vertebrate adaptations; readings from Scientific American.
1968
5492
Vertebrate development in vitro
1997
5493
Viable 'Legionella pneumophila' Not Detectable by Culture on Agar Media.
1987
5494
Viruses and cancer
1985
5495
Vision and change in undergraduate biology education : a call to action : final report of a national conference /
2011
5496
Visualization in marine science.
2000
5497
Volunteer Lake Monitoring Program, 1989. Volume 6. Southwestern Illinois Region.
1990
5498
Volunteer Lake Monitoring Program, 1989. Volume 7. Southern Illinois Region.
1990
5499
Washington coastal areas of major biological significance
1977
5500
Waste Disposal.
1976
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