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因为牵牛花的茎(jīng)上长(zhǎng)着细小的根须。根须下面还长有小小的吸(xī)盘。这些吸盘会自动吸在绳(shéng)子上面,让根须像小爪(zhuǎ)子一样地缠(chán)住绳子,这样,牵牛花就能顺着绳子“爬”了。牵牛花为什么会顺着绳子爬?@樊新
Because the morning glory of the stem (zhǎng) with small roots. There is also a small root suction below (xī) plate. These suction cups automatically suck over the shéngs, allowing the roots to wrap around like ropes so that the morning glory can “crawl” along the ropes. Why did the morning glory crawl down the rope? Fan new