Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3776Chemical news office., 1932 |
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Strona 114
... cavities . The alimentary canal developed out of the primitive archer- teron , sometimes by branching sometimes ... cavity equivalent in a general way with the cœlom of higher types , alimentary canal often bent ( u - shaped ) , opening ...
... cavities . The alimentary canal developed out of the primitive archer- teron , sometimes by branching sometimes ... cavity equivalent in a general way with the cœlom of higher types , alimentary canal often bent ( u - shaped ) , opening ...
Strona 115
... cavities , the mantle cavity being particularly characteristic and some- times used like a womb for hatching the young . The shell alone repeats the hollow construction , and has from the earliest times . been considered a symbol of the ...
... cavities , the mantle cavity being particularly characteristic and some- times used like a womb for hatching the young . The shell alone repeats the hollow construction , and has from the earliest times . been considered a symbol of the ...
Strona 116
... cavities not perfor- ating the palate , central nervous system a dorsal tube expanded in front to form a brain , peripheral nerves inserted in pairs on this tube , ten pairs belonging to the cranial or head region , sympathetic nervous ...
... cavities not perfor- ating the palate , central nervous system a dorsal tube expanded in front to form a brain , peripheral nerves inserted in pairs on this tube , ten pairs belonging to the cranial or head region , sympathetic nervous ...
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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