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horticulture

(Encyclopedia)horticulture [Lat. hortus=garden], science and art of gardening and of cultivating fruits, vegetables, flowers, and ornamental plants. Horticulture generally refers to small-scale gardening, and agric...

parthenogenesis

(Encyclopedia)parthenogenesis pärˌthənōjĕnˈəsĭs [key] [Gr.,=virgin birth], in biology, a form of reproduction in which the ovum develops into a new individual without fertilization. Natural parthenogenesis ...

Lysenko, Trofim Denisovich

(Encyclopedia)Lysenko, Trofim Denisovich lĭsĕngˈkō, Rus. trəfēmˈ dyĭnyēˈsəvĭch lĭsyĕnˈkə [key], 1898–1976, Russian agronomist. As president of the Lenin All-Union Academy of Agricultural Sciences ...

Kingsolver, Barbara

(Encyclopedia)Kingsolver, Barbara, 1955–, American writer, b. Annapolis, Md., B.S. DePauw Univ., 1977, M.S. Univ. of Arizona, 1981. She studied biology and ecology and was a science writer before completing The B...

Sulston, Sir John Edward

(Encyclopedia)Sulston, Sir John Edward, 1942–2018, British molecular biologist, Ph.D. Cambridge, 1966. He was staff scientist at the MRC Laboratory of Molecular Biology in Cambridge, England, from 1969 to 1992, w...

anatomy

(Encyclopedia)anatomy ənătˈəmē [key], branch of biology concerned with the study of body structure of various organisms, including humans. Comparative anatomy is concerned with the structural differences of pl...

Dyson, Freeman John

(Encyclopedia)Dyson, Freeman John dīˈsən [key], 1923–2020, British-American theoretical physicist and mathematician, studied Trinity College, Cambridge (B.A., 1945) and Cornell. He did bomber operations resear...

Wallace, Alfred Russel

(Encyclopedia)Wallace, Alfred Russel, 1823–1913, English naturalist. From his study of comparative biology in Brazil and in the East Indies, he evolved a concept of evolution similar to that of Charles Darwin. Li...

life

(Encyclopedia)life, although there is no universal agreement as to a definition of life, its biological manifestations are generally considered to be organization, metabolism, growth, irritability, adaptation, and ...

diatom

(Encyclopedia)diatom dīˈətŏmˌ, –tōmˌ [key], unicellular organism of the kingdom Protista, characterized by a silica shell of often intricate and beautiful sculpturing. Most diatoms exist singly, although s...