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Auxin
US
・
UK
A1 初級
n.
名詞
茁長素
影片字幕
植物如何分辨時間 (How Plants Tell Time)
05:26
But the changes in stem growth appear to be governed by a hormone called
auxin
, which in this case tells certain parts of the plant to grow in response to light.
The stem of the sunflower grows faster on the side that gets less sunlight, thanks to a higher level of
auxin
activity on the shady side.
B1 中級
好消息：水仙花是最糟糕的。水仙花是最糟糕的 (Good News: Daffodils Are The Worst)
03:30
And it can interfere with the plant growth hormone
auxin
.
B2 中高級
