A manual of zoologyWilliam Blackwood & Sons, 1878 |
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Página 16
... short , to its external shape and internal structure . This con- stitutes the science of morphology ( poppy , form , and λóyos , dis- course ) . From the second , we have to study the vital actions performed by living beings and the ...
... short , to its external shape and internal structure . This con- stitutes the science of morphology ( poppy , form , and λóyos , dis- course ) . From the second , we have to study the vital actions performed by living beings and the ...
Página 26
... short stamens , the other a short pistil with long stamens . In tri- morphic plants , the species is composed of three such distinct forms , which differ in like manner in the conformation of their reproductive organs , though they are ...
... short stamens , the other a short pistil with long stamens . In tri- morphic plants , the species is composed of three such distinct forms , which differ in like manner in the conformation of their reproductive organs , though they are ...
Página 60
... This order comprises those Rhizo- poda which are , with one or two exceptions , naked ; have usually short , blunt , lobose pseudopodia , which do not anastomose with one another ; and contain a " nucleus , ". 60 MANUAL OF ZOOLOGY .
... This order comprises those Rhizo- poda which are , with one or two exceptions , naked ; have usually short , blunt , lobose pseudopodia , which do not anastomose with one another ; and contain a " nucleus , ". 60 MANUAL OF ZOOLOGY .
Página 91
... short alimentary canal , and enter the abdominal cavity , where they are subjected to the general rotation of the " chyme - mass , " being finally excreted by an anal aperture which is situated near the mouth and within the vestibule ...
... short alimentary canal , and enter the abdominal cavity , where they are subjected to the general rotation of the " chyme - mass , " being finally excreted by an anal aperture which is situated near the mouth and within the vestibule ...
Página 92
... short locomotive stage , develop themselves into fresh Vorticella . How far this process may be truly sexual is not known , and no form of unequivocal sexual reproduction has hitherto been shown to occur in the case of Vorticella ...
... short locomotive stage , develop themselves into fresh Vorticella . How far this process may be truly sexual is not known , and no form of unequivocal sexual reproduction has hitherto been shown to occur in the case of Vorticella ...
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Outras edições - Ver tudo
Manual of Zoology ...: With a General Introduction on the Principles of Zoology Henry Alleyne Nicholson Pré-visualização indisponível - 2015 |
Palavras e frases frequentes
abdomen adult alimentary canal ambulacral amongst animal Annelides antennæ anus aperture appendages Arachnida articulated attached birds bivalve body bones Brachiopoda branchiæ branchial calcareous carapace cavity cephalothorax chitinous ciliated composed comprising consists contractile Crustacea Ctenophora developed disc distinct division dorsal embryo Eocene external extinct extremity feet females fins fishes Foraminifera fossil furnished gemmation genera genus gills head horny Huxley Hydrozoa incisors Insects integument intestine known labium larva larvæ legs limbs living locomotive males Mammals mandibles margin maxillæ membrane molars Mollusca mouth nervous system operculum organs ovum Owen pairs Paleozoic parasitic placed plates polypide polypites Polyzoa portion possess posterior present regarded reproductive Reptiles resembling respiratory Rotifera rudimentary Scolecida segments shell side Silurian single skeleton sometimes somites species spines stomach structure sub-order surface tail teeth tentacles termed thorax toes transverse tube upper usually valves ventral Vertebrates vesicle whilst wings Zoantharia zooids