 | 1863 - Страниц: 700
...compare this system of apertures and canals to BO many mouths and intestines, but the sponge represents a kind of subaqueous city, where the people are arranged...about the streets and roads in such a manner that each individual can easily appropriate his food from the water as it passes along. In the sponges two reproductive... | |
 | 1863 - Страниц: 714
...compare this system of apertures and canals to so many mouths and intestines, but the sponge represents a kind of subaqueous city, •where the people are...about the streets and roads in such a manner that each individual can easily appropriate his food from the water as it passes along. In the sponges two reproductive... | |
 | Thomas Henry Huxley - 1864 - Страниц: 362
...compare this system of apertures and canals to so many mouths and intestines ; but the sponge represents a kind of subaqueous city, where the people are arranged...appropriate his food from the water as it passes along. In the sponges two reproductive processes are known to occur : the one of them, asexual, corresponding... | |
 | 1864 - Страниц: 500
...compare this system of apertures and canals to so many mouths and intestines ; but the sponge represents a kind of subaqueous city, where the people are arranged...appropriate his food from the water as it passes along. In the sponges two reproductive processes are known to occur : the one of them asexual, corresponding... | |
 | Herbert Spencer - 1867 - Страниц: 658
...units, such as are shown in Fig. 143. So that, in the words of Prof. Huxley, " the sponge represents a kind of subaqueous city, where the people are arranged...appropriate his food from the water as it passes along." In the compound Infusoria, the VOL. II. G component units remain quite distinct. Being, as aggregates... | |
 | John Ellor Taylor - 1872 - Страниц: 292
...out by means of the "oscula." As Professor Huxley has well remarked, the whole sponge represents " a kind of subaqueous city, where the people are arranged...appropriate his food from the water as it passes along." Sponges are reproduced by the detachment of little gemmules, or sarcode particles, which pass into... | |
 | Joel Dorman Steele - 1872 - Страниц: 326
...(Euspongia officinalis) is not a single sponge but a community, "representing," as Huxley remarks, "a kind of subaqueous city, where the people are arranged about the streets and roads in such a way that each can choose his food from the water as it passes along." The skeleton is composed of horny... | |
 | M. Harbison - 1874 - Страниц: 184
...exhalaut aperture in the centre. manner to that by which the Amoeba is fed. " The sponge represents a kind of subaqueous city, where the people are arranged...appropriate his food from the water as it passes along." (Huxley.) 222. Reproduction in the sponges is effected in two different ways. In the fresh-water sponge... | |
 | 1874 - Страниц: 256
...tures and canals to so many mouths and intestines, but the sponge represents a kind of snb-aqueous city, where the people are arranged about the streets...appropriate his food from the water as it passes along.' Sponge-life is social rather than individual. One curious evidence of this fact is to be found in the... | |
 | Henry Alleyne Nicholson - 1875 - Страниц: 258
...which might otherwise accumulate injuriously within the organism. A sponge, in fact, may be compared to "a kind of subaqueous city, where the people are...appropriate his food from the water as it passes along " (Huxley). The mechanism by which this circulation of water is maintained is found in certain chambers... | |
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The sponge represents a kind of subaqueous city, where the people are arranged about the streets and roads in such a manner that each can easily appropriate his food from the water as it passes along. 
