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Unformatted text preview: next year the pollen grain germinates to produce a pollen tube that grows into the female gametophyte. The sperm cell (from the pollen grain) and egg cell fuse, forming the next generation sporophyte. The sporophyte develops into an embryo encased within a seed. The seed is later released to be transported by the wind to where (hopefully) it lands and germinates. If you have seen a large pine tree you realize there are hundreds or more female cones on such a tree. Pine pollen has been noted to travel great distances from the plant that produced it, if the wind is strong enough. To aid this transport pine pollen has two air sacs, and thus is quite distinctive, as shown in Figure 8....
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