Bio-invasions -- See Biological invasions Here are entered works on processes in which organisms become established in a region where they previously did not exist and then rapidly expand their range.
Bio-pics, Television -- See Biographical television programs This heading is used as a genre/form heading for fiction or nonfiction television programs that depict the lives of real people.
--headings beginning with the word Drug; also individual drugs and groups of drugs, e.g. Narcotics; also subdivision Therapeutic use under individual chemicals and groups of chemicals, e.g. Copper--Therapeutic use; Insulin--Therapeutic use; and subdivision Drug use under names of individual persons and under classes of persons and ethnic groups
Bioassessment of water quality -- See Water quality biological assessment Here are entered works on evaluation of the condition of a body of water based on surveys and other measurements of the resident biota. Works on testing to determine the degree of pollution of water by comparing its effect on a living organism with the effect of a standard preparation are entered under Water quality bioassay.
