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secretion
(Encyclopedia) secretion, in biology, substance elaborated by the living material of an animal or plant. Secretions in humans can be produced by a single cell or by a group of cells commonly called a…Hilleman, Maurice Ralph
(Encyclopedia) Hilleman, Maurice Ralph, 1919–2005, American microbiologist, regarded as the father of modern vaccinology, b. Miles City, Mont., Ph.D Univ. of Chicago, 1941. He joined E. R. Squibb and…Integrated Pest Management
(Encyclopedia) Integrated Pest Management (IPM), planned program that coordinates economically and environmentally acceptable methods of pest control with the judicious and minimal use of toxic…Monera
(Encyclopedia) Monera, taxonomic kingdom that comprises the prokaryotes (bacteria and cyanobacteria). Prokaryotes are single-celled organisms that lack a membrane-bound nucleus and usually lack…Lederberg, Joshua
(Encyclopedia) Lederberg, JoshuaLederberg, Joshualāˈdərbûrgˌ [key], 1925–2008, American geneticist, b. Montclair, N.J., grad. Columbia, 1944, Ph.D. Yale, 1948. He is known for his studies of the…homology
(Encyclopedia) CE5 Homology in bones of a bird wing and an amphibian foreleg homologyhomologyhōmŏlˈəjē [key], in biology, the correspondence between structures of different species that is…autotroph
(Encyclopedia) autotrophautotrophôtˈətrōfˌ [key], in biology, an organism capable of synthesizing its own organic substances from inorganic compounds. Autotrophs produce their own sugars, lipids, and…notochord
(Encyclopedia) notochordnotochordnōˈtəkôrdˌ [key], in biology, supporting rod running most of the length of animals of the phylum Chordata and present at varying times in the life cycle. Composed of…Ohsumi, Yoshinori
(Encyclopedia) Ohsumi, Yoshinori, 1945–, Japanese biologist, Ph.D. Univ. of Tokyo, 1974. He was a researcher at the Univ. of Tokyo from 1977 to 1996, when he joined the National Institute for Basic…Nüsslein-Volhard, Christiane
(Encyclopedia) Nüsslein-Volhard, Christiane,1942–, German biologist and geneticist, Ph.D. Univ. of Tübingen, 1973. Since 1985 she has been director of the genetics division of the Max Planck…Trending
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