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23 hours ago · In biology, adaptation has three related meanings. Firstly, it is the dynamic evolutionary process of natural selection that fits organisms to their environment, enhancing their evolutionary fitness. Secondly, it is a state reached by the population during that process. Thirdly, it is a phenotypic trait or adaptive trait, with a functional role ...
23 hours ago · Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. [2] [7] These contrast with benign tumors, which do not spread. [7] Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. [1]
23 hours ago · Master's degree. (varied by country and institution) A Doctor of Philosophy ( PhD or DPhil; Latin: philosophiae doctor or doctor philosophiae) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research.
23 hours ago · The cat ( Felis catus ), commonly referred to as the domestic cat or house cat, is a small domesticated carnivorous mammal. It is the only domesticated species of the family Felidae. Recent advances in archaeology and genetics have shown that the domestication of the cat occurred in the Near East around 7500 BC.
23 hours ago · Southeast Asia is a vast subregion of Asia, roughly described as geographically situated east of the Indian subcontinent, south of China, and northwest of Australia. The region is located between the Indian Ocean and the Bay of Bengal in the west, the Philippine Sea, the South China Sea, and the Pacific Ocean in the east.
23 hours ago · Lagrange multiplier. In mathematical optimization, the method of Lagrange multipliers is a strategy for finding the local maxima and minima of a function subject to equation constraints (i.e., subject to the condition that one or more equations have to be satisfied exactly by the chosen values of the variables ). [1]
23 hours ago · Distribution of narwhal populations. The narwhal ( Monodon monoceros) is a species of toothed whale native to the Arctic. It is the only member of the genus Monodon, and one of two living representatives of the family Monodontidae. The narwhal has a similar build to the closely related beluga whale, with which it overlaps in range and can ...
