Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3776Chemical news office., 1932 |
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Strona 114
... blastopore becomes the mouth and the axis joining the aboral and oral ( blastoporic ) pole is verticle in position . Animals often attached , but not always firmly rooted like plants , often moving as in Hydra . Jaworsky1 has compared ...
... blastopore becomes the mouth and the axis joining the aboral and oral ( blastoporic ) pole is verticle in position . Animals often attached , but not always firmly rooted like plants , often moving as in Hydra . Jaworsky1 has compared ...
Strona 116
... blastopore posterior and dorsal in position , larval or embryo having the essential fea- tures of the adult animal from an early stage , but with a yolk sac of varying size , sometimes suspended from ventral surface , the larva often ...
... blastopore posterior and dorsal in position , larval or embryo having the essential fea- tures of the adult animal from an early stage , but with a yolk sac of varying size , sometimes suspended from ventral surface , the larva often ...
Strona 118
... blastopore dorsal and posterior in position , no vegetative reproduction , and regenerative power confined to the ... blastopore , 1 which becomes the anus , the mouth , ventral in 1 The association of the blastopore with the anal end of ...
... blastopore dorsal and posterior in position , no vegetative reproduction , and regenerative power confined to the ... blastopore , 1 which becomes the anus , the mouth , ventral in 1 The association of the blastopore with the anal end of ...
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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