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isogamy

(Encyclopedia) isogamyisogamyīsŏgˈəmē [key], in biology, a condition in which the sexual cells, or gametes, are of the same form and size and are usually indistinguishable from each other. Many algae…

East, Edward Murray

(Encyclopedia) East, Edward Murray, 1879–1938, American biologist, b. Du Quoin, Ill., grad. Univ. of Illinois (B.S., 1900; Ph.D., 1907). He served the agricultural experiment stations at the Univ. of…

Osborn, Henry Fairfield

(Encyclopedia) Osborn, Henry Fairfield, 1857–1935, American paleontologist and geologist, b. Fairfield, Conn. He was professor of comparative anatomy (1883–90) at Princeton, and professor of biology…

Hevesy, Georg von

(Encyclopedia) Hevesy, Georg vonHevesy, Georg vongāˈôrkh fən hĕˈvĕshē [key], 1885–1966, Hungarian physicist and chemist. He received the 1943 Nobel Prize in Chemistry for his work on the use of…

cloaca

(Encyclopedia) cloacacloacaklōāˈkə [key], in biology, enlarged posterior end of the digestive tract of some animals. The cloaca, from the Latin word for sewer, is a single chamber into which pass…

biogenetic law

(Encyclopedia) biogenetic law, in biology, a law stating that the earlier stages of embryos of species advanced in the evolutionary process, such as humans, resemble the embryos of ancestral species…

zoology

(Encyclopedia) zoology, branch of biology concerned with the study of animal life. From earliest times animals have been vitally important to man; cave art demonstrates the practical and mystical…

Houssay, Bernardo Alberto

(Encyclopedia) Houssay, Bernardo AlbertoHoussay, Bernardo Albertobārnärˈdō älbārˈtō ouˈsī [key], 1887–1971, Argentine physiologist, b. Buenos Aires. He was a child prodigy, entering college at the…

Lefkowitz, Robert Joseph

(Encyclopedia) Lefkowitz, Robert Joseph, 1943–, American physician, b. New York City, M.D. Columbia, 1966. Since 1973 Lefkowitz has been a professor at Duke Univ.; he was appointed a Howard Hughes…

Moscow State University

(Encyclopedia) Moscow State University, at Moscow, Russia, officially M. V. Lomonosov Moscow State Univ.; founded 1755 as Moscow Univ. by the Russian scientist M. V. Lomonosov, renamed Moscow State…