The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 884
... usually bisexual . Gynoecium coenocarpous ( probably morphologically always paracarpous ) . Pollen grains 3- or 2- celled , tricolpate or of tricolpate - derived type . Small ovules with a single integument . Seeds with or without ...
... usually bisexual . Gynoecium coenocarpous ( probably morphologically always paracarpous ) . Pollen grains 3- or 2- celled , tricolpate or of tricolpate - derived type . Small ovules with a single integument . Seeds with or without ...
Page 1028
... usually water supplies from which chlorine and other additives have been removed , either by carbon filtration or by the addition of a chemical . Marine organisms can be maintained in either natural or artificial seawater ; the latter ...
... usually water supplies from which chlorine and other additives have been removed , either by carbon filtration or by the addition of a chemical . Marine organisms can be maintained in either natural or artificial seawater ; the latter ...
Page 1073
... usually absent ; usually with colulus ; com- mon in Southern Hemisphere ; about 100 species . Family Hadrotarsidae ( hadrotarsids ) . Minute spiders ; book lungs usually absent ; anterior median eyes most devel- oped , posterior median ...
... usually absent ; usually with colulus ; com- mon in Southern Hemisphere ; about 100 species . Family Hadrotarsidae ( hadrotarsids ) . Minute spiders ; book lungs usually absent ; anterior median eyes most devel- oped , posterior median ...
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accelerator acid activity Adams administrative advertising Aeschylus aesthetic Africa agriculture animals appear become body called Central century changes contains continued cost countries crops cultural dance early East effect electrons elements engineering established example farm feet field figures flight followed function human important increase industry influence Italy Khoisan Knossos known Lake land languages later less living major materials means ment natural occur operations organization original patterns percent performance period plants play political population present production range region remains represented result River society sound South southern species structure style theory tion traditional United usually variety West Western widely