biology
回答 (1)
2007-09-16 1:28 am
✔ 最佳答案
no need to do photosynthesis for synthesis food in bulb.the onion use the leave upper the solid to do photosynthesis, and then transport the food to the bulb
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https://hk.answers.yahoo.com/question/index?qid=20070915000051KK01503