53. What is believed to be the most significant result of the evolution of the amniotic egg?
(A) Tetrapods are no longer tied to the water for reproduction.
(B) Tetrapods can now function with just lungs.
(C)Newborns are much less dependent on their parents.
(D) Embryos are protected from predators.

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統計: A(52), B(2), C(6), D(9), E(0) #2911809

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