SCIENCE GLOSSARY Abiotic: A nonliving factor or element (e.g., light, water, heat, rock, energy, mineral). Acid deposition: Precipitation with a pH less than 5.6 that forms in the atmosphere when certain pollutants mix with water vapor. Allele: Any of a set of possible forms of a gene. Biochemical conversion: The changing of organic matter into other chemical forms. Biological diversity: The variety and complexity of species present and interacting in an ecosystem and the relative abundance of each. Biomass conversion: The changing of organic matter that has been produced by photosynthesis into useful liquid, gas or fuel. Biomedical technology: The application of health care theories to develop methods, products and tools to maintain or improve homeostasis. Biomes: A community of living organisms of a single major ecological region. Biotechnology: The ways that humans apply biological concepts to produce products and provide services. Biotic: An environmental factor related to or ...
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