Author Question: The ripening of fruit and the dropping of leaves and fruit are principally contr (Read 1289 times)

xclash

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The ripening of fruit and the dropping of leaves and fruit are principally controlled by
A) auxins.
B) cytokinins.
C) indole acetic acid.
D) ethylene.
E) carbon dioxide concentration (in air).



clippers!

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I chose D and got the answer, hope that helps.



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