Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3776Chemical news office., 1932 |
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Strona 116
... adult animal from an early stage , but with a yolk sac of varying size , sometimes suspended from ventral surface , the larva often pelagic , even when the adult phase is not . The Fishes are characterised by very numerous vertebræ and ...
... adult animal from an early stage , but with a yolk sac of varying size , sometimes suspended from ventral surface , the larva often pelagic , even when the adult phase is not . The Fishes are characterised by very numerous vertebræ and ...
Strona 117
... adult by a pair of lungs , central nervous system dorsal , tubular , with brain and paired peripheral nerves , ten cranial pairs , sympathetic nervous system present , striped muscles not altogether serially arranged , unstriped muscle ...
... adult by a pair of lungs , central nervous system dorsal , tubular , with brain and paired peripheral nerves , ten cranial pairs , sympathetic nervous system present , striped muscles not altogether serially arranged , unstriped muscle ...
Strona 118
... adult , rarely external organs of sex present ( e.g. , in ducks , geese , ostriches ) , embryo discoid , embryonic ... adult , stomodæum and proctodæum contributing to the alimentary canal , but no cloaca present in the adult , the anus ...
... adult , rarely external organs of sex present ( e.g. , in ducks , geese , ostriches ) , embryo discoid , embryonic ... adult , stomodæum and proctodæum contributing to the alimentary canal , but no cloaca present in the adult , the anus ...
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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