change of colour
51Chromatophore — Zebrafish chromatophores mediate background adaptation on exposure to dark (top) and light environments (bottom). Chromatophores are pigment containing and light reflecting cells found in amphibians, fish, reptiles, crustaceans, and cephalopods.… …
52electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …
53art conservation and restoration — Maintenance and preservation of works of art, their protection from future damage, deterioration, or neglect, and the repair or renovation of works that have deteriorated or been damaged. Research in art history has relied heavily on 20th and… …
54Classical guitar making — A person who is specialized in the making of stringed instruments such as guitars, lutes and violins is called a luthier. Contents 1 Skills 1.1 Shaping of wood with acoustics and resonance aims 1.2 Sound characteristics (Timbre) …
55Optical illusion — This article is about visual perception. For the Time Requiem album, see Optical Illusion (album). An optical illusion. The square A is exactly the same shade of gray as square B. See checker shadow illusion. An optical illusion (also called a… …
56Wikipedia:Reference desk/Computing — The Wikipedia Reference Desk covering the topic of computing. Computing #eee #f5f5f5 #eee #aaa #aaa #aaa #00f #36b #000 #00f computing Wikipedia:Reference de …
57insect — insectival /in sek tuy veuhl/, adj. /in sekt/, n. 1. any animal of the class Insecta, comprising small, air breathing arthropods having the body divided into three parts (head, thorax, and abdomen), and having three pairs of legs and usually two… …
58animal behaviour — Introduction any activity of an intact organism. A living animal behaves constantly in order to survive, and all animals must solve the same basic problems. They must, for instance, periodically replace their energy source (consume… …
59plant disease — ▪ plant pathology Introduction an impairment of the normal state of a plant that interrupts or modifies its vital functions. All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …
60chameleon — chameleonic /keuh mee lee on ik/, adj. chameleonlike, adj. /keuh mee lee euhn, meel yeuhn/, n. 1. any of numerous Old World lizards of the family Chamaeleontidae, characterized by the ability to change the color of their skin, very slow… …
