The Encyclopedia Americana, Količina 1Alexander Hopkins McDannald Americana Corporation, 1949 |
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Zadetki 1–3 od 70
Stran 275
... present , the quantity of which varies greatly with the time and place . In all analyses and statements of the composition of air , water vapor is supposed to have first been removed . The quantity of carbon dioxide is small but is ...
... present , the quantity of which varies greatly with the time and place . In all analyses and statements of the composition of air , water vapor is supposed to have first been removed . The quantity of carbon dioxide is small but is ...
Stran 647
... present in the foot . ( 4 ) The tubular type of nervous system is found only among the choruates ; here the nervous system develops from an epithelial plate ( neural plate ) on the dorsal surface of the embryo , which becomes ...
... present in the foot . ( 4 ) The tubular type of nervous system is found only among the choruates ; here the nervous system develops from an epithelial plate ( neural plate ) on the dorsal surface of the embryo , which becomes ...
Stran 648
... present , consisting of a vibrating mem- brane overlying a tracheal chamber ; sense cells are present between the membrane and cham- ber , and when the membrane is set into vibration lib Cr US FIG . 29 FIG . 29. - Internal ear of ...
... present , consisting of a vibrating mem- brane overlying a tracheal chamber ; sense cells are present between the membrane and cham- ber , and when the membrane is set into vibration lib Cr US FIG . 29 FIG . 29. - Internal ear of ...
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