accumulating mechanism

  • 31endocrine system — Group of ductless glands that secrete hormones necessary for normal growth and development, reproduction, and homeostasis. The major endocrine glands are the hypothalamus, pituitary, thyroid, islets of Langerhans, adrenals, parathyroids, ovaries …

    Universalium

  • 32Martian geyser — Artist concept showing sand laden jets erupting from Martian geysers. (Published by NASA; artist: Ron Miller.) …

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  • 33List of IBM products — The following is a list of notable products from the International Business Machines (IBM) Corporation and its predecessor corporations, beginning in the 1890s, and spanning punched card machinery, time clocks, and typewriters, via mainframe… …

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  • 34Oncovirus — An oncovirus is a virus that can cause cancer. This term originated from studies of acutely transforming retroviruses in the 1950–60s, often called oncornaviruses to denote their RNA virus origin. It now refers to any virus with a DNA or RNA… …

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  • 35Objections to evolution — Part of a series on Evolutionary Biology …

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  • 36clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… …

    Universalium

  • 37environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …

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  • 38glacier — glaciered, adj. /glay sheuhr/, n. an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of… …

    Universalium

  • 39international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …

    Universalium

  • 40Instinct — • The term usually includes the idea of a purposive adaptation of an action or series of actions in an organized being, not governed by consciousness of the end to be attained Catholic Encyclopedia. Kevin Knight. 2006. Instinct     Instinc …

    Catholic encyclopedia