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For the next 10 years Driesch traveled extensively; he also experimented during
this period with marine eggs, frequently at the international Zoological Station in
Naples. In 1891 he separated the first two cells formed by a dividing sea urchin ...
egg 386 egg, in biology, the female sex cell, or gamete. In botany the egg is
sometimes called a macrogamete. In zoology the Latin term for egg, ovum, is
frequently used to refer to the single cell, while the word egg may be applied to
the entire ...
(1981) 2,216. fowl, also called poultry, in animal husbandry, birds raised
commercially or domestically for meat, eggs, and feathers. Chickens, ducks,
turkeys, and geese are of primary commercial importance, while guinea fowl and
squabs are ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review
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For virtually all its 238 years,Britannica has ruled the shelves as a peerless general encyclopedia. Reviewers have consistently given it high marks for most of the 12 criteria identified inKister's ... Read full review