Incandescent light bulbs, which have high output of red light, are least effective in promoting Biology Incandescent light bulbs, which have high output of red light, are least effective in promoting A) photosynthesis. B) seed germination. C) phototropism. D) flowering. E) entrainment of circadian rhythms. Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+
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