問題詳情

47. Animals are totally dependent on plants and microorganisms for nitrogen fixation and nitrateassimilation because animals:
(A) do not have the reducing power (NADPH) to fix nitrogen.
(B) lack the enzyme aminotransferase.
(C)lack the enzymes to reduce


(D)lack carbamoyl-phosphate synthetase I.
(E)lack glutamate dehydrogenase.

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增