During convergent extension,
A) cells on the opposite side of the embryo follow converging developmental pathways leading to bilateral symmetry.
B) the cells of the neural folds adhere to one another to complete the neural tube.
C) the cells of a tissue layer reorganize, forming a narrowed, elongated sheet.
D) the dorsal-ventral axis is established.
E) cell adhesion molecules are expressed, causing the eight blastomeres to adhere tightly to one another.
Ans: C) the cells of a tissue layer reorganize, forming a narrowed, elongated sheet.
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