23. Mouse lung cells are much more active metabolically than frog lung cells. What is the consequence of this?
(A) There is a salt imbalance in the frog.
(B) The frog must eat insects for energy.
(C) The mouse can survive longer and colder winters.
(D) The mouse lung cells must have a large cell surface area.
(E) The internal environment ofthe frog fluctuates significantly.
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統計: 尚無統計資料
統計: 尚無統計資料