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ppk ppk
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Posts: 3561
12 years ago
The yolk of the frog egg     
A) is concentrated at the animal pole.
B) impedes the formation of a primitive streak.
C) prevents gastrulation.
D) supports the higher rate of cleavage at the animal pole compared to the vegetal pole.
E) is homogeneously arranged in the egg.
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12 years ago
D
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