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breeding
(Encyclopedia)breeding, in agriculture and animal husbandry, propagation of plants and animals by sexual reproduction; usually based on selection of parents with desirable traits to produce improved progeny. In con...Mayr, Ernst
(Encyclopedia)Mayr, Ernst ĕrnst mīr [key], 1904–2005, American zoologist and author, b. Kempten, Germany. He began his career in Berlin and emigrated to the United States in 1931, where, until 1953, he was asso...pea
(Encyclopedia)pea, hardy, annual, climbing leguminous plant (Pisum sativum) of the family Leguminosae (pulse family), grown for food by humans at least since the early Bronze Age; no longer known in the wild form. ...Slovak literature
(Encyclopedia)Slovak literature. The earliest documents written in the Slovak language date from the 15th cent. Following the Czech Hussite movement, many Czech cultural leaders emigrated to Slovakia (16th cent.); ...mask
(Encyclopedia)mask, cover or partial cover for the face or head used as a disguise or protection. Masks have been worn from time immemorial throughout the world. They are used by primitive peoples chiefly to impers...titanium
(Encyclopedia)titanium tītāˈnēəm, tĭ– [key] [from Titan], metallic chemical element; symbol Ti; at. no. 22; at. wt. 47.867; m.p. 1,675℃; b.p. 3,260℃; sp. gr. 4.54 at 20℃; valence +2, +3, or +4. Titani...blood groups
(Encyclopedia)blood groups, differentiation of blood by type, classified according to immunological (antigenic) properties, which are determined by specific substances on the surface of red blood cells. Blood group...heredity
(Encyclopedia)heredity, transmission from generation to generation through the process of reproduction in plants and animals of factors which cause the offspring to resemble their parents. That like begets like has...Strauss, Richard
(Encyclopedia)Strauss, Richard rĭkhˈärt shtrous [key], 1864–1949, German composer. Strauss brought to a culmination the development of the 19th-century symphonic poem, and was a leading composer of romantic op...Hardy, Thomas
(Encyclopedia)Hardy, Thomas, 1840–1928, English novelist and poet, b. near Dorchester, one of the great English writers of the 19th cent. The son of a stonemason, he derived a love of music from his father and a ...Browse by Subject
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