Topics: biosphere, microbial ecology, population, colony, community, ecosystem, ecological niche, micro-environment, energy, nutrient flow, microbial inter-relationship, aquatic habitat, eutrophication, stratification, lake, pond, bio-aerosol, micro-flora, waste management

Topics: Microbial ecology, microorganisms, microbes, environment, habitat, chemostat enrichment culture, air microbiology, outdoor microflora, indoor microflora, microflora, atmospheric air composition, air quality

Topics: Global Environmental Politics, environmental regimes, Stratospheric Ozone, Hazardous Waste, Toxic Chemicals, Climate Change, Natural Resources, Species, Habitats, Effective Environmental Regimes, Environmental Politics, Sustainable Development

Topics: Aquatic Biodiversity, Aquatic Biodiversity threat aquatic ecosystem, endemic species, habitat loss, Aquatic Pollution, climatic change, Aquatic Biodiversity Monitoring, Aquatic Biodiversity assessment, Total Aquatic Biodiversity-value Index, Aquatic Biodiversity Conservation, Aquatic Biodiversity Management, Vulnerable Trans-Boundary Aquatic System, National Biodiversity Action Plan, Fresh Water Ecosystem, lake, pond, Lotic Streams, Estuarine Ecosystem, metallic pollution, Pesticidal Pollution, Industrial Pollution

Topics: Water Quality Management, Pollution Control, water bodies physical composition, water chemistry, Nutrient Cycles, water biological characteristics, sampling methods, Water Quality Standards, water pollution control, Water Quality Monitoring, Nitrification, Denitrification, Anaerobic ammonium oxidation, Nitrogen mineralisation, Carbon Cycle, Phosphorus Cycle, Iron Cycle, Silica Cycle, Marine Dead Zones, bacteria, protozoa, Manual Sampling, grab sampling, Integrated sampling, Automatic Sampling, Mechanical Samplers, Physical Habitat Assessments, Turbidity, salinity, Total oxidised nitrogen, Total organic nitrogen, Total Kjeldahl nitrogen

Topics: cell, tissues, supportive systems, nervous coordination, hormonal coordination, reproduction, nutrition, ecosystem, ecological management, habitats, microorganisms, conservation, genetics, evolution, lamlad

Topics: cell structure, cell organization, specimens, diffusion, osmosis, active transport, biological molecules, proteins, DNA structure, water, enzymes, enzyme action, plant nutrition, photosynthesis, leaf structure, human nutrition, diet, alimentary canal, mechanical digestion, chemical digestion, absorption, water uptake, transpiration, translocation, heart, blood, lymphatic vessels. blood, diseases, immunity, human gas exchanges, respiration, aerobic respiration, anaerobic respiration, excretion, co-ordination, human nervous control, sense organs, homeostasis, tropic response, drugs, Medicinal drugs, misused drugs, reproduction, Asexual reproduction, Sexual reproduction, human sex hormones, Sexually transmitted infections, inheritance, chromosomes, genes, mitosis, meiosis, Monohybrid inheritance, Variation, adaptive features, selection, Energy flow, food chains, food web, Nutrient cycles, population size, Biotechnology, genetic engineering, food supply, Habitat destruction, pollution, conservation

Topics: soil water, Salinity, temperature, pH, Radiation, pollution, Benthic region, marine bacteria, Tundra soils, Salt lakes, extreme aquatic environments, Glaciers

Topics: Toxicology, Cell Culture Techniques, cell structure, molecular techniques, molecular cloning, genomic libraries, gene expression, immunochemical techniques, proteomics, metabolomics, bioinformatics, toxicants, air pollutants, water pollutants, soil pollutant, Occupational Toxicants, metals, Agricultural Chemicals, pesticides, Organophosphorus Insecticides, Carbamate Insecticides, Botanical Insecticides, Pyrethroid Insecticides, Herbicides, Fungicides, Rodenticides, Food Additives, food Contaminants, toxins, Microbial Toxins, Mycotoxins, Algal Toxins, Plant Toxins, drug abuse, cell membranes, toxicant processing, Toxicant Distribution, Gastrointestinal Absorption, Dermal Absorption, Respiratory Penetration, Toxicant Distribution, Endoplasmic Reticulum, Microsomes, Monooxygenations, Nonmicrosomal Oxidations, Epoxide Hydration, DDT Dehydrochlorinase, Glucuronide Conjugation, Glucoside Conjugation, Phosphate Conjugation, Reactive Metabolites, Activation Enzymes, Reactive Oxygen Species, Piperonyl Butoxide, toxic action, acute toxicity, Chemical Carcinogenesis, Mutagenesis, DNA damage, mutagenesis, Human cancer, Teratogenesis, Embryonic Development, organ toxicity, Hepatotoxicity, Nephrotoxicity, Neurotoxicity Testing, nervous system, Reproductive System, Hypothalamic-Pituitary-Gonadal Axis, Male Reproductive Physiology, Female Reproductive Physiology, Endocrine Toxicology, endocrine disruption, Respiratory Toxicology, Occupational Lung Diseases, Environmental Lung Diseases, Immune System, Immune Suppression, Immune-Mediated Injury, Hypersensitivity, applied toxicology, toxicity testing, Forensic Toxicology, Clinical Toxicology, Human Health Risk Assessment, environmental toxicology, Environmental Sample Collection Methods, Analytical Techniques, Bioaccumulation, Environmental Risk Assessment, Molecular Toxicology, Biochemical Toxicology

Topics: vegetation, tropical forests, climate, soils, floristic diversity, floral biology, flower development, pollination, fruit, seed production, microclimate, seeding patterns, forest productivity, tropical savannas, arid regions, Mediterranean ecosystems, temperate forest ecosystems, temperate grasslands, coniferous forests, terrestrial wetlands, freshwater ecosystems, coastal ecosystems, coral reefs, coastal vegetation