The Formation of the Endoderm During Gastrulation in Frogs Results

question 7

Multiple Choice

The formation of the endoderm during gastrulation in frogs results from

• A) the movement of cells from the surface layer to the interior.
• B) the migration of cells within the blastocoel.
• C) the formation of columnar cells at the vegetal pole.
• D) rapid cell division.
• E) the migration of mesenchyme cells.

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