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Blastula , blastula The stage of development of an animal embryo that results from cleavage of a fertilized egg. This stage generally resembles a hollow ball wi… Gastrulation , gastrulation In the embryogenesis of a vertebrate, the next stage after the blastula, in which the three germ layers differentiate to form the triplo… Stage , Stage (or Phase)
The term "stage" is used to designate a developmental phase that, for Freud, is characterized by a specific organization of the libi… Endoderm , Skip to main content
endoderm
endoderm (ĕn´dədûrm´), in biology, inner layer of tissue formed in the gastrula stage of the developing embryo. At the… Embryonic Development , All embryonic structures are derived from a single cell formed by the union of two gametes. Every individual organism began as a single cell, which d… Cellular Slime Molds , Acrasiomycetes (division Myxomycota) A class of slime moulds in which the feeding stage generally consists of individual amoeboid cells (myxamoebae).…
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