Categories: Disambiguation | Anti-tank missiles | Units of measure In aquatic organisms, gills are a respiratory organ for the extraction of oxygen from water and for the excretion of carbon dioxide. ... Respiration can refer to: Cellular respiration, which is the use of oxygen in the metabolism of organic molecules. ... In biology, an organ (Latin organum: instrument, tool) is a group of tissues, which perform a specific function or group of functions. ... Gills are the spore-bearing structure in agarics (gilled mushrooms). ... The term spore has several different meanings in biology. ... Families Agarics (also known as gilled mushrooms) are one of the most familiar types of mushrooms. ... In physics and metrology, units are standards for measurement of physical quantities that need clear definitions to be useful. ... Measurement is the determination of the size or magnitude of something. ... The U.S. customary units, commonly known in the United States as English units or standard units, are the non-metric units of measurement that are currently used in the U.S., in some cases alongside the metric system of units. ... The Imperial units are an irregularly standardized system of units that have been used in the United Kingdom and its former colonies, including the United States and Commonwealth countries. ... An Anti-tank guided missile (ATGM) is a missile the primary purpose of which is to hit and destroy tanks. ... The Israel Defense Forces (IDF) (Hebrew: צבא ההגנה לישראל Tsva Ha-Haganah Le-Yisrael ([Army] Force [for] the Defense of Israel), often abbreviated צהל Tsahal, alternative English spelling Tzahal, is the name of Israels armed forces, comprising the Israel army, Israel air force and Israel navy. ... Crust composition Oxygen 43% Silicon 21% Aluminium 10% Calcium 9% Iron 9% Magnesium 5% Titanium 2% Nickel 0. ... Gill is a video game character and the boss of the Street Fighter III series by Capcom. ... Street Fighter III is a fighting game produced by Capcom, released in 1997 on Capcoms CPS-3 hardware, which is a continuation of the famous Street Fighter series of games. ... Computer and video games A screenshot of Tetris for the Nintendo Game Boy A console game (better known as a video game) is a form of interactive multimedia used for entertainment, which consists of a moveable image displayed on a screen that is usually controlled and manipulated using a handheld...