問題詳情
68. In biology lab, your teacher places petri dishes on the lab table. Upon examination, you observe
that there are lumps of plant tissue, and you are told that they have been grown artificially and
can produce new plants. Each lump is a(n)__
(A) tetraploid zygote；
(B) stigma；
(C) amnion；
(D) callus.
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
用户評論
【hsiao1997】評論
In biology lab, your teacher places petri dishes on the lab table. Upon examination, you observe that there are lumps of plant tissue, and you are told that they have been grown artificially and can produce new plants. Each lump is a(n)__