the application of statistics to biological and medical data.
a branch of geology dealing with the differentiation of sedimentary rock units on the basis of the fossils they contain. biostratigraphy (bī’ō-strə-tĭg’rə-fē) The study and categorization of rock strata based on their fossil content and distribution. Biostratigraphic data are often considered together with radiometric and paleoenvironmental data as a means of dating rock strata. Compare […]
a bedded, blanketlike sedimentary deposit of organic origin built by marine organisms and including shell beds, flat reefs, and corals. noun a rock layer consisting of a deposit of organic material, such as fossils
noun the use of live sterile maggots to treat patients with infected wounds
the formation of chemical compounds by a living organism. the laboratory preparation of biological molecules by the use of reagents or catalysts derived from natural substances and modeled on a series of reactions occurring in a living organism. noun the formation of complex compounds from simple substances by living organisms bi’o·syn·thet’ic (-thět’ĭk) adj.