翻訳と辞書 Words near each other ・ RotateRight Zoom ・ Rotatinal flow ・ Rotating biological contactor ・ Rotating black hole ・ Rotating bolt ・ Rotating bookmark ・ Rotating calipers ・ Rotating Cell Biofilm Reactor (RCBR) ・ Rotating Detonation Engine ・ Rotating disk electrode ・ Rotating disk viscometer ・ Rotating ellipsoidal variable ・ Rotating furnace ・ Rotating gas-check ・ Rotating line camera ・ Rotating locomotion in living systems ・ Rotating Machine Company ・ Rotating magnetic field ・ Rotating pocket heater ・ Rotating radio transient ・ Rotating reference frame ・ Rotating Regional Primary System ・ Rotating Reserve ・ Rotating ring-disk electrode ・ Rotating savings and credit association ・ Rotating spheres ・ Rotating tank ・ Rotating unbalance ・ Rotating wave approximation ・ Rotating wheel space station Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Rotating locomotion in living systems ： ウィキペディア英語版 Rotating locomotion in living systems There exist two distinct modes of locomotion using rotation: first, simple rolling; and second, the spinning of parts relative to a fixed axle or body, in the manner of a wheel or propeller. Several organisms move by rolling; however, despite the ubiquity of wheels in human vehicles, true wheels do not appear (with the exception of certain flagella) to play any role in the movement of organisms. Biologists have expounded on the reasons for this apparent lack of biological wheels, and wheeled creatures have often appeared in speculative fiction. Given the utility of the wheel in human technology, and the existence of biological analogues of many other technologies (such as wings and lenses), it might seem odd that wheels do not appear in nature, but there are two main factors which explain this phenomenon. First, there are several developmental and evolutionary obstacles to the advent of a wheel by natural selection (addressing the question "Why can't wheels evolve?"). Secondly, wheels are often at a competitive disadvantage when compared with other means of propulsion (such as walking, running, or slithering) in natural environments (addressing the question "If wheels ''could'' evolve, why would they be unlikely to do so?"). Incidentally, this disadvantage in some environments also explains why some civilizations have abandoned wheels. ==Known instances of rotation in biology== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rotating locomotion in living systems」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.