--subdivision Biodegradation under individual chemicals and groups of chemicals and individual materials and types of materials, e.g. Insulin--Biodegradation; Insecticides--Biodegradation; Metals--Biodegradation
--subdivisions Metabolism--Regulation, Secretion--Regulation, and Synthesis--Regulation under individual chemicals and groups of chemicals, e.g. Copper--Metabolism--Regulation; Copper--Secretion--Regulation; Insulin--Synthesis--Regulation; and subdivision Vocalization--Regulation under individual animals and groups of animals, e.g. Mammals--Vocalization--Regulation; Cattle--Vocalization--Regulation
--subdivision Biodegradation under individual chemicals and groups of chemicals and individual materials and types of materials, e.g. Insulin--Biodegradation; Insecticides--Biodegradation; Metals--Biodegradation
--subdivision Biodegradation under individual chemicals and groups of chemicals and individual materials and types of materials, e.g. Insulin--Biodegradation; Insecticides--Biodegradation; Metals--Biodegradation
--subdivision Biodegradation under individual chemicals and groups of chemicals and individual materials and types of materials, e.g. Insulin--Biodegradation; Insecticides--Biodegradation; Metals--Biodegradation
Biological diversification -- See Biodiversity Here are entered works on the totality of the variety of living organisms, the genetic differences among them, and the communities and ecosystems in which they occur.
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Biological diversity -- See Biodiversity Here are entered works on the totality of the variety of living organisms, the genetic differences among them, and the communities and ecosystems in which they occur.
Biological evaluation of environmental impacts -- See Ecological assessment (Biology) Here are entered works on estimating and evaluating the effects that human activities have on living organisms and their habitats. Works on estimating and evaluating the actual or potential hazards that toxic substances pose to an ecosystem are entered under Ecological risk assessment.
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Biological evolution -- See Evolution (Biology) Here are entered works on biological evolution. Works on the general concept of evolution are entered under Evolution. --subdivision Evolution under individual animals and groups of animals and under individual organs and regions of the body, e.g. Cattle--Evolution; Heart--Evolution
Biological molecules -- See Biomolecules Here are entered works on molecules produced by living systems or by biotechnological means and their synthetic analogs.
--subdivision Nomenclature under individual animals and groups of animals and individual plants and groups of plants, e.g. Corn--Nomenclature; Fishes--Nomenclature
--subdivision Nomenclature under individual animals and groups of animals and individual plants and groups of plants, e.g. Corn--Nomenclature; Fishes--Nomenclature
