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单词 choanocyte
释义

> as lemmas

ˈchoanocyte
ˈchoanocyte n.
Brit. /ˈkəʊənəsʌɪt/
,
U.S. /koʊˈænəˌsaɪt/
a ‘collar cell’ in sponges and choanoflagellates.
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the world > animals > invertebrates > protozoa > class Infusoria > [noun] > member of > member of order Choanoflagellata > collar cell of
choanocyte1888
the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > part containing choanocytes > choanocyte
choanocyte1888
1888 W. J. Sollas Tetractinellida p. xiv The endoderm is partly composed of flagellated collared cells (choanocytes), and partly of pinacocytes.
1900 E. A. Minchin in Lankester Treat. Zool. II. 27 Each cell bears at its upper free extremity a single vibratile flagellum.., which springs from the centre of an area enclosed by a delicate cup or collar of protoplasm. On account of the latter peculiarity these cells have been termed collar cells or choanocytes.
1959 Chambers's Encycl. XIII. 102/1 The choanocytes, also known as whip-cells or collared cells, consist of a spherical or oval body, with the apex drawn out to form a protoplasmic collar from the base of which springs a long protoplasmic thread or whip.
extracted from choano-comb. form
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as lemmas
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