Sentences with phrase «outer ectoderm»
Hydra skin has two layers, the outer ectoderm and the inner endoderm, which the team labeled with the colors green and magenta, respectively.
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These «snapshots» of development led scientists to believe that gills were formed from different tissues: the internal «endoderm» lining in jawless vertebrates, and the «ectoderm» outer skin in the jawed.
This name refers to the fact that the early embryo of bilaterians (the blastula stage) is generally composed of three primary germ layers: the ectoderm (outer layer), the endoderm (inner layer), and the mesoderm (middle layer) between them.