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Crucigrama Sopa de Letras Hoja de Trabajo
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Chapters 11 & 13

Horizontales
Accumulation of this needed for organizer function of micromeres
Complete cleavage
Mid-sized blastomeres in sea urchins
Epithelial to mesenchymal transition initiates this
Specifies chick AP axis
Zygotic gene only activated in micromeres
Derived from the large micromeres
Layer of cells formed at animal pole in birds
Mechanism used for elongation of archenteron
Type of cleavage in sea urchins
Head process of chick forms as primitive streak does this
Type of cleavage in birds
Largest blastomeres in sea urchins
Extraembryonic membrane that stores wastes
Verticales
Incomplete cleavage
Example of an amniote
Smallest blastomeres in sea urchins
Segmented blocks of mesoderm
First morphological sign of gastrulation in amniotes
Peripheral ring of blastoderm
This substance causes displaced cleavage
Small disc of yolk-free cytoplasm
Primitive gut
Long, thin processes containing microfilaments
Germ layers develop from this in amniotes
TF involved in left-right asymmetry