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Selective breeding was established as a scientific practice by Robert Bakewell during the British Agricultural Revolution in the 18th century. Arguably, his most important breeding program was with sheep. Using native stock, he was able to quickly select for large, yet fine-boned sheep, with long, lustrous wool.
An erosion gully in Australia caused by rabbits, an unintended consequence of their introduction as game animals. In the social sciences, unintended consequences (sometimes unanticipated consequences or unforeseen consequences, more colloquially called knock-on effects) are outcomes of a purposeful action that are not intended or foreseen.
The merit system determines the fitness of the candidate by the ability to pass a written competitive examination, given by a commission of examiners. The answers submitted by candidates must be unsigned, so as to obviate the possibility of favoritism on the part of the examiners. A list is made of the successful candidates, arranged in the ...
Similar to a diet that encourages healthy eating, a spending diet helps you form better habits and provides peace of mind. You’ll be living within your means as you build up savings for ...
Tax benefits. With universal life insurance, cash value growth is tax-deferred, implying that you aren’t obligated to pay taxes on the gains while they accumulate. In addition, death benefits ...
In library and information science, controlled vocabulary is a carefully selected list of words and phrases, which are used to tag units of information (document or work) so that they may be more easily retrieved by a search. [4] [5] Controlled vocabularies solve the problems of homographs, synonyms and polysemes by a bijection between concepts ...
Somaclonal variation is the variation seen in plants that have been produced by plant tissue culture. Chromosomal rearrangements are an important source of this variation. . The term somaclonal variation is a phenomenon of broad taxonomic occurrence, reported for species of different ploidy levels, and for outcrossing and inbreeding, vegetatively and seed propagated, and cultivated and non ...
The Oxford English Dictionary ( OED) is the principal historical dictionary of the English language, published by Oxford University Press (OUP), a University of Oxford publishing house. The dictionary, which published its first edition in 1884, traces the historical development of the English language, providing a comprehensive resource to ...