The New Encyclopaedia Britannica: Suppl, Volume 16Encyclopaedia Britannica, 1997 |
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Page 380
... contain both , while some closely related species exhibit an almost arbitrary distribution . For example , Spirorbis borealis has chlorocruorin , S. corrugatus has hemoglobin , and S. militaris has neither . The third iron - containing ...
... contain both , while some closely related species exhibit an almost arbitrary distribution . For example , Spirorbis borealis has chlorocruorin , S. corrugatus has hemoglobin , and S. militaris has neither . The third iron - containing ...
Page 382
... contains a respiratory pig- ment dissolved in the plasma , and the coelomic fluid of others may contain coelomic blood cells contain- ing hemoglobin . The most common blood pigments are hemoglobin and chlorocruorin , but their ...
... contains a respiratory pig- ment dissolved in the plasma , and the coelomic fluid of others may contain coelomic blood cells contain- ing hemoglobin . The most common blood pigments are hemoglobin and chlorocruorin , but their ...
Page 589
... contain a six- atom pyrimidine ring ; in purines this ring is chemically condensed with an imidazole ring ; pterins contain the pyrazine ring . Pterins occur as white , yellow , orange , or red granules in association with insect wing ...
... contain a six- atom pyrimidine ring ; in purines this ring is chemically condensed with an imidazole ring ; pterins contain the pyrazine ring . Pterins occur as white , yellow , orange , or red granules in association with insect wing ...
Contents
CHINA | 36 |
CHINESE LITERATURE | 231 |
CHORDATES CHRISTIANITY | 251 |
Copyright | |
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