複選題
19 Use the diagram to answer the following question.
Which of the following conclusions is consistent with the information in the evolutionary tree?
(A)The amnion occurs in mammals, birds, and lizards.
(B)Amnion occurs in all organisms with digit-bearing limbs.
(C) The amnion is a membrane that surrounds developing embryos.
(D) Feathers contribute to temperature regulation in birds.
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統計: 尚無統計資料
統計: 尚無統計資料