pyramid of numbers

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• Pyramid of numbers — A pyramid of numbers shows graphically the population of each level in a food chain.Fictional exampleIn the following pyramid of numbers, a five level food chain is illustrated; 10 000 freshwater shrimp are enough to feed 1 000 bleaks, which in… …   Wikipedia

• pyramid of numbers — a concept in ecology: an organism forming the base of a food chain is numerically very abundant each succeeding member of the chain being represented by successively fewer individuals and the final large predator being always numerically rare * * …   Useful english dictionary

• pyramid of numbers — Numbers of individuals at the different trophic levels in a food chain …   Dictionary of invertebrate zoology

• Pyramid Head — is the nickname of a fictional monster from the Silent Hill video game series, primarily the game Silent Hill 2 .Characteristics Of the creatures that appear in Silent Hill 2 , Pyramid Head is one of the few that is overtly masculine in… …   Wikipedia

• Pyramid State Recreation Area — Infobox protected area | name = Pyramid State Recreation Area, Illinois, USA iucn category = V caption = Map of the U.S. state of Illinois showing the location of Pyramid State Recreation Area locator x = 142 locator y = 317 location = Perry… …   Wikipedia

• Pyramid Rock Festival — infobox music festival music festival name = The Pyramid Rock Festival caption = location = Phillip Island, Victoria years active= 2004 present dates = December 30 January 1 (held annually) genre = Rock, Hip Hop URL =… …   Wikipedia

• pyramid scheme — A high *risk investment system based on small, initial sums of *money Pyramid schemes are often *fraudulent. They function like chain letters, depending on ever increasing numbers of money paying participants to join the scheme: Investors are… …   Auditor's dictionary

• Egyptian pyramid construction techniques — There have been many hypotheses about the Egyptian pyramid construction techniques. The construction techniques seem to have developed over time; the earliest pyramids were built in different ways than later ones. Most of the construction… …   Wikipedia

• Population pyramid — This distribution is named for the frequently pyramidal shape of its graph. A population pyramid, also called an age structure diagram, is a graphical illustration that shows the distribution of various age groups in a population (typically that… …   Wikipedia

• Pascal's pyramid — In mathematics, Pascal s pyramid is a three dimensional generalization of Pascal s triangle. Just as Pascal s triangle gives coefficients for the terms of a binomial expansion, so Pascal s pyramid gives coefficients for a trinomial expansion.… …   Wikipedia

• Pyramidal numbers — Pyramidal Py*ram i*dal, a. [Cf. F. pyramidal.] [1913 Webster] 1. Of or pertaining to a pyramid; in the form of a a pyramid; pyramidical; as, pyramidal cleavage. [1913 Webster] The mystic obelisks stand up Triangular, pyramidal. Mrs. Browning.… …   The Collaborative International Dictionary of English