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Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. [1] Phytogeography is the branch of biogeography that studies the ...
The biosphere (which is technically a spherical shell) is virtually a closed system with regard to matter, [1] with minimal inputs and outputs. Regarding energy, it is an open system, with photosynthesis capturing solar energy at a rate of around 100 terawatts. [2] By the most general biophysiological definition, the biosphere is the global ...
A geographic information system ( GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. [1] [2] Much of this often happens within a spatial database; however, this is not essential to meet the definition of a GIS. [1] In a broader sense, one may consider such a ...
The other branches of geography, most commonly limited to human geography and physical geography, can usually apply the concepts and techniques of technical geography. [ 2 ] [ 3 ] [ 5 ] However, the methods and theory are distinct, and a technical geographer may be more concerned with the technological and theoretical concepts than the nature ...
Karl Pearson FRS FRSE [1] ( / ˈpɪərsən /; born Carl Pearson; 27 March 1857 – 27 April 1936 [2]) was an English eugenicist, mathematician, and biostatistician. [3] [4] He has been credited with establishing the discipline of mathematical statistics. [5] [6] He founded the world's first university statistics department at University College ...
Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.
Principles of Biology. Principles of Biology is a college level biology electronic textbook published by Nature Publishing in 2011. The book is not a digitally reformatted version of a paper book. [1] The book, the first in a projected series, is Nature Publishing's first foray into textbook publishing. [2] [3]
A Civic Biology: Presented in Problems (usually referred to as just Civic Biology) was a biology textbook written by George William Hunter, published in 1914.It is the book which the state of Tennessee required high school teachers to use in 1925 and is best known for its section about evolution that was ruled by a local court to be in violation of the state Butler Act.