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单词 amphiblastula
释义

> as lemmas

amphiˈblastula
amphiˈblastula n. Zool. a blastula composed predominantly of two different cell types, which constitutes a free-swimming larval form in certain sponges.
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the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > [noun] > blastula
periblastula1876
macromere1877
micromere1877
blastula1887
amphiblastula1888
1888 Proc. Boston Soc. Nat. Hist. 23 76 The walls were either double or single on different sides of the same *amphiblastula in Halichondria.
1940 Parker & Haswell Text-bk. Zool. (ed. 6) I. iii. 120 The embryo leaves the parent sponge in the peculiar stage to which the name of amphiblastula is applied.
1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) iii. 25/1 The flagellated embryo is liberated from the parent as an amphiblastula..,and generally swims for a time.
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