How does the pollen tube move down the style of a flower?
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When a pollen grain lands on the stigma of a flower of the correct species , a pollen tube begins to grow. It grows through the style until it reaches an ovule inside the ovary. The nucleus of the pollen then passes along the pollen tube and fuses (joins) with the nucleus of the ovule.
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it is the tube that is connected downwards at the ovary of the flower from the style. thus, it is a travelling path for a pollen grain to travel from the style to the ovary...
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