33. The primitive streak in a bird is the functional equivalent of__________.
(A) the lip of the blastopore in the frog
(B) the archenteron in a frog
(C) the notochord in a mammal
(D) neural crest cells in a mammal

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統計: A(0), B(0), C(1), D(0), E(0) #3981204

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#7555080
考試重點 本題測驗胚胎發育中「原腸形成(...
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