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The English word secular, an adjective meaning something happening once in an eon, is derived from the Latin saeculum. [9] The descendants of Latin saeculum in the Romance languages generally mean "century" (i.e., 100 years): French siècle , [ 10 ] Spanish siglo , [ 11 ] Portuguese século , [ 12 ] Italian secolo , [ 13 ] etc.
Jeffrey Vinokur was born in 1990 to Russian immigrant parents. He attended Montvale Public Schools. [18] His early interest in science was fueled by doing kitchen science experiments in elementary school, which later progressed to creating a chemistry lab in his parents' garage at age 14, where he would do amateur experiments like making sodium metal from household supplies. [18]
In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then itself goes through the same series of stages, the ...
The definition of life has long been a challenge for scientists and philosophers. [ 2 ] [ 3 ] [ 4 ] This is partially because life is a process, not a substance. [ 5 ] [ 6 ] [ 7 ] This is complicated by a lack of knowledge of the characteristics of living entities, if any, that may have developed outside Earth.
Enterprise life cycle, the process of changing a business enterprise; Project life cycle; Product lifecycle, the stages in the lifespan of a commercial or consumer product; New product development, the process of bringing a new product to market; Life-cycle assessment, the analysis of the environmental impacts associated with a product
Chronobiology comes from the ancient Greek χρόνος (chrónos, meaning "time"), and biology, which pertains to the study, or science, of life. The related terms chronomics and chronome have been used in some cases to describe either the molecular mechanisms involved in chronobiological phenomena or the more quantitative aspects of ...
Hayflick describes three phases in the life of normal cultured cells. At the start of his experiment he named the primary culture "phase one". Phase two is defined as the period when cells are proliferating; Hayflick called this the time of "luxuriant growth".
The word data is most often used as a singular collective mass noun in educated everyday usage. [1] [2] However, due to the history and etymology of the word, considerable controversy has existed on whether it should be considered a mass noun used with verbs conjugated in the singular, or should be treated as the plural of the now-rarely-used datum.