本题目来源于试卷: SL/HL Topic C3.1 Integration of body systems，类别为 IB生物学
[问答题]
9. Plant growth is coordinated by various signalling chemicals. These chemicals cause growth responses which require a coordinated response. Outline how coordination is achieved in the following responses:
a. Fruit ripening andv() a)lrnn4fd hqzkby,leuw7 4* g 76eethene (ethylene) production.
参考答案: Ethene stimulates ripening of fruit when seeds mature.
Ethene production causes an increase in ethene production.
Positive feedback occurs.
Positive feedback gives coordinated, rapid ripening of the fruit.
本题详细解析:
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