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出典:Wiktionary
triploblasty (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/29 18:38 UTC 版)
Triploblasty is a condition of the blastula in which there are three primary germ layers: the ectoderm, mesoderm, and endoderm. The germ layers form during gastrulation of the blastula. Additionally, the term may refer to any ovum in which the blastoderm splits into three layers.
triploblasty