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Sergeu [11.5K]
3 years ago
10

How is light an external stimulus for plants

Biology
1 answer:
sammy [17]3 years ago
6 0
Plants<span> produce hormones and </span>respond to external stimuli<span>, growing towards sources of water and light, which they need to survive. A tropism is a growth in </span>response<span> to a </span>stimulus<span> and an auxin is a </span>plant<span> hormone produced in the stem tips and roots, which controls the direction of growth.</span>
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