Last Updated：2025/12/04
Sentence
顕微鏡下で、生物学者はヒトデの背側（口とは反対の側）の内胚層にある小さな骨片を撮影してその構造を記録した。
Quizzes for review
Under the microscope, the biologist photographed the paxilla, a small ossicle in the starfish's aboral endoderm, to document its structure.
See correct answer
Under the microscope, the biologist photographed the paxilla, a small ossicle in the starfish's aboral endoderm, to document its structure.
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