age variability

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• Variability hypothesis — The variability hypothesis originated in the early nineteenth century with Johann Meckel who argued that females are more variable than males. Because he considered males to be the superior animal Meckel concluded that variation was a sign of… …   Wikipedia

• age-slicing — cohort slicing (a method used to assign ages to fish, given length measurements, e.g. used to convert catch at size data into catch at age data before the application of age structured assessment models. Cohort slicing assumes that there is a one …   Dictionary of ichthyology

• Little Ice Age — The reconstructed depth of the Little Ice Age varies between different studies (anomalies shown are from the 1950–80 reference period). The Little Ice Age (LIA) was a period of cooling that occurred after the Medieval Warm Period (Medieval… …   Wikipedia

• Human variability — Human variability, or human variation, is the range of possible values for any measurable characteristic, physical or mental, of human beings. Differences can be trivial or important, transient or permanent, voluntary or involuntary, congenital… …   Wikipedia

• Stone Age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods. [1860 65] * * * First known period of… …   Universalium

• Qualifying Stake/Qualified All Age Search —    For dogs that are over 6 months old that have never placed or been awarded a JAM in Open or Limited Staked or placed in an Amateur Stake or won two first places in qualifying stakes. This event is commonly viewed as the stepping stone to all… …   Hunting glossary

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

• Climate change — For current and future climatological effects of human influences, see global warming. For the study of past climate change, see paleoclimatology. For temperatures on the longest time scales, see geologic temperature record …   Wikipedia

• Phonological development — Sound is at the beginning of language learning. Children have to learn to distinguish different sounds and to segment the speech stream they are exposed to into units – eventually meaningful units – in order to acquire words and sentences. So, if …   Wikipedia

• china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …   Universalium

• China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …   Universalium