Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3776Chemical news office., 1932 |
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Strona 114
... opening by an excretory orifice ( anus ) which here appears for the first time in the ascend- ing animal series . The blastopore becoming the mouth occupying the anterior pole of horizontal ( antero - posterior ) axis of the adult ...
... opening by an excretory orifice ( anus ) which here appears for the first time in the ascend- ing animal series . The blastopore becoming the mouth occupying the anterior pole of horizontal ( antero - posterior ) axis of the adult ...
Strona 117
... opening with the urogenital system , excretory system a pair of kidneys passing through pro - meso- and meta - nephric phases , external organs of sex present , circulatory system of three chambered or in higher types ( crocodiles ) of ...
... opening with the urogenital system , excretory system a pair of kidneys passing through pro - meso- and meta - nephric phases , external organs of sex present , circulatory system of three chambered or in higher types ( crocodiles ) of ...
Strona 118
... opening , kidney passing through pro- meso- and meta - nephridial stages , single ovary only , often present in adult , rarely external organs of sex present ( e.g. , in ducks , geese , ostriches ) , embryo discoid , embryonic membranes ...
... opening , kidney passing through pro- meso- and meta - nephridial stages , single ovary only , often present in adult , rarely external organs of sex present ( e.g. , in ducks , geese , ostriches ) , embryo discoid , embryonic membranes ...
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added adult alimentary canal analogy analysis animals Applications arranged atom becoming bilateral Black blastopore body bone British Canada carbon cavities character Chemical chemistry circulatory system clearly cœlom compared conception consider constructed containing definite described developed discoveries distinct dominant dorsal Drebbel ducts element embryo exact excretory experiments external extract force fundamental gills give given groups gypsum head heart higher ideas important included industry interest internally known laboratory latter Lavoisier less light limbs London lungs malt material means ment mesoderm method molecule mouth muscle National Mark nature neck nervous system obtained opening organic molecule organs original pairs Paris passing Patent Phylum physical placenta plant position possible present Priestley primitive problem produce quantitative Ratio reproduction segments sense separate short skeleton sometimes stages structure substances tail tion trunk types urogenital usually various vegetative whole