A manual of zoologyWilliam Blackwood & Sons, 1878 |
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Resultados 1-5 de 69
Página 4
... completely per- meated with water . Hence , the primary organic substances , such as enter directly into the composition of living beings , are so unstable that we usually speak of them as decomposing or breaking up " spon- taneously ...
... completely per- meated with water . Hence , the primary organic substances , such as enter directly into the composition of living beings , are so unstable that we usually speak of them as decomposing or breaking up " spon- taneously ...
Página 5
... completely passive , unable to originate motion , and equally unable to arrest it when once originated . Living matter , so long as it is living , is the seat of energy , and can overcome the DEAD AND LIVING BODIES . 5.
... completely passive , unable to originate motion , and equally unable to arrest it when once originated . Living matter , so long as it is living , is the seat of energy , and can overcome the DEAD AND LIVING BODIES . 5.
Página 24
... completely does it afford a condensed exposition of the fundamental construction of the objects classified . Thus , if the whale were placed by an arti- ficial grouping amongst the fishes , this would simply express the facts that its ...
... completely does it afford a condensed exposition of the fundamental construction of the objects classified . Thus , if the whale were placed by an arti- ficial grouping amongst the fishes , this would simply express the facts that its ...
Página 36
... completely independent lives , the one being devoted to nutrition , the other to reproduction . The generative being , however , is in many cases not at first able to mature the sexual elements , and is therefore provided with the means ...
... completely independent lives , the one being devoted to nutrition , the other to reproduction . The generative being , however , is in many cases not at first able to mature the sexual elements , and is therefore provided with the means ...
Página 40
... completely concealed from view . For these differences the terms " transformation " and " meta- morphosis " are employed ; but they must be regarded as essentially nothing more than variations of development . Transformation is the term ...
... completely concealed from view . For these differences the terms " transformation " and " meta- morphosis " are employed ; but they must be regarded as essentially nothing more than variations of development . Transformation is the term ...
Índice
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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