The New Encyclopędia BritannicaEncyclopędia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 298
... occur as replacements of feldspar and in the interstices between the sand grains . Pseudomorphic replacement of calcic plagioclase by sodic plagioclase ( albite ) is ubiquitous in rocks in which zeolites are no longer stable ...
... occur as replacements of feldspar and in the interstices between the sand grains . Pseudomorphic replacement of calcic plagioclase by sodic plagioclase ( albite ) is ubiquitous in rocks in which zeolites are no longer stable ...
Page 441
... occur during cell - division cycles , however . During the early development of an embryo , for example , the original egg cell , usually a very large cell , undergoes repeated series of cell divisions without any intervening growth ...
... occur during cell - division cycles , however . During the early development of an embryo , for example , the original egg cell , usually a very large cell , undergoes repeated series of cell divisions without any intervening growth ...
Page 1016
... occur . Populations composed of individuals most of whom are pure breeding for a given trait show less adaptability to changing conditions than do populations consisting of hybrid individuals . The greater the variation within the ...
... occur . Populations composed of individuals most of whom are pure breeding for a given trait show less adaptability to changing conditions than do populations consisting of hybrid individuals . The greater the variation within the ...
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