Why do plants produce so many seeds?
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It's a matter of survival.  Only a small percentage of seeds produced by plants will actually grow into mature plants.  Some won't germinate.  Some won't wind up in a place where they can germinate.  Some will be eaten.  Plants produce so many seeds so that enough of them will grow into mature plants to ensure survival of the species.
262612
FLowers are the sex organs of the plant.  They are pollinated and make seeds.
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its a wonder\n\n!\n\nto know it\nThe seeds are carried away from the mother plant by animals called dispersers. In some cases the animal carries away an entire fruit, in other cases the animal is carrying seeds alone. The animal usually feeds on the fruit (ovary wall), but "tosses" the seeds (or passes them through its digestive system). This assures that seeds end up far away from the "mother" plant, where they can develop without competition from "mom."\n\nHaving been taken away from the parent, it is time for the seeds to sprout or germinate. Seed germination is defined as the emergence of the radicle through the seed coat. Common garden seeds germinate if given just water and reasonably warm temperatures.\n\nWild species usually have some kind of deeper dormancy to avoid sprouting in late summer or fall when the seeds are commonly dispersed. This assures that tender seedlings are not frozen at a young age by the approaching winter. Instead the seedlings do not appear until warm weather arrives in springtime.\n\nIf a species has evolved a very thick seed coat, it may require scarification of that seed coat before water can enter the seed and initiate germination. Perhaps the coat has to be gnawed at by animals, or frozen and thawed repeatedly to crack the coat, or rund down the rocks in a stream bed or up beach in pounding surf to wear the coat down. Perhaps the seed is swallowed whole by the disperser. The thick seed coat protects the dormant embryo as it passes through the animal's digestive system. The weakening of the seed coat through digestion means that the seed is ready to sprout when it gets deposited (along with a bit of fertilizer) by the disperser somewhere new in the environment. Yet other seeds require a brief exposure to fire to scarify the seed coat.\n\nIn species with thin seed coats, light may be able to penetrate into the dormant embryo. The embryo may then either use the presence of light or the absence of light to trigger its germination process. Small seeds with thin seed coats are likely to use light as a signal for germination. If these are buried shallowly enough for light to hit the seed, then its germination will initiate and before it runs out of reserves, its cotyledons will be doing photosynthesis. If the small seed is deeply buried it does not germinate; it has no idea how deep it is buried and may not have sufficient reserves on board to make it to the surface before they run out. Evolution favors shutting down germination in the dark for those species. For large-seeded species, the opposite may be true. There is an advantage to having your reserves buried before starting to germinate...otherwise the sprout just acts as a flag to say..."come and eat my nutritious seeds here on the surface." Evolution favors a large seed with lots of investment in storage to wait until it is buried before sending up its shoot. Such a seed will key in on darkness rather than light. In laboratory you will see an example of each of these kinds of evolutionary adaptations!\n\nIn yet other species, the embryo is fully developed when the seeds are dispersed. They need to be deposited in soil that possesses fungi that serve as host to the seed and seedling until the development is completed and the seedling is big enough to grow on its own. Trying to sprout many orchid seeds in common garden soil is futile...the required fungal hosts are not present...so leaving wild orchids where they naturally grow is the best idea.\n\nIn most species of wild plants the mother invests the seed with abscisic acid. This hormone makes the embryo dormant until environmental conditions and native enzymes permit the abscisic acid to be broken down inside the embryo. The enzyme required is present in the embryo in the fall, but it is inactive until activated by low temperature. About four weeks at 4°C is required to activate the enzyme and degrade all the abscisic acid in the embryo. This cold
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Fruits contain seeds. Vegetables don't.  But there is a lot more to it. See here:\n\nhttp://forums.gardenweb.com/forums/load/teach/msg011956409905.html
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It's all about numbers.  More pollen increases the probability that a pollen grain will reach the stigma of a flower and initiate fertilization.
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Fruit is attractive to some animals.  An animal eats the fruit and wanders off.  Later the undigestible seeds pass out of its digestive tract.  Voila; the seeds have been distributed away from the parent plant, so they have a better chance of survival (less competition for resources like light and nutrients) than they would if they were dropped off next to the parent.
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That's how they are fertilized to create seeds...
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no even the same kind of apple can have a different number of seeds it is basically luck of the draw
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Lipids are fats, oils and waxes.\nThe seeds of some plant species store mostly carbohydrates, others store lots of lipids. These stores are both for energy to grow (germinate) and to provide materials to grow before photosynthesis takes over.\n\nEverything a plant needs is made from carbon dioxide plus water (during photosynthesis) and soil minerals. As plants make seeds they move carbohydrates and lipids into them.
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Tree: God created the plants & trees.  The seeds happened later to propogate the foliage.
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so it can produce fruit, therefore seeds, and multiply. Without fertilisation a plant cannot do that, and would die out.
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Some seeds... the ground... water... the sun... \n\nIt's a pretty simple formula...
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In every packet of grass seed, there is one, genetically "rogue" seed.  This seed germinates at a slower rate than the rest of the grass seed.\n\nThe regular grass seed (such as creeping red fescue, for instance) grows to become a healthy, even sward.  The single, irregular seed pushes out a single, pointed root downwards.  The root carboniferises into a woody stem, from which a large, single leaf protrudes upwards.  This leaf, in the shape of a flat, regular-sided square or rectangle grows at an angle of ninety degrees to the root.  The outer-facing side of the leaf develops markings which appear in the form of letters reading "KEEP OFF THE GRASS".\n\nHope this helps.
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In contrast with the case of animals, many plants can hybridize (cross-fertilization between different species) and produce viable offspring. Plants deal with the different (non-matching) chromosomes from their parents by means of polyploidy, that is, instead of undergoing complete cell separation, they duplicate each chromosome and then retain the new pair, so that subsequent mitosis results in polyploid cells. These polyploid individuals usually are bigger, produce larger flowers and/or fruits, and may even be fertile. Even if they are not, their larger size and/or yield (as in crops) is advantageous for the agriculturers.\nPolyploidy can be induced by means of some substances (e.g. colchicine) that affect the cell and prevent its full division. The consequence is similar to the case of hybrids.
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Many parts of plants are used to make medicines.  It's usually because that plant evolved to deal with disease or hazardous conditions.
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The bulk of the seed is made up of a carbohydrate-rich "tissue" (although its not alive) called the cotyledon. Seeds are divided by the number of cotyledons they posess.  Corn is a monocot (one cotyledon), however, larger seeds are often dicots (two cotyledons). \n\nIn seed anatomy, the cotyledons protect the embryo and give it nutrients with which to germinate.  A full-grown plant makes its own food through photosynthesis, however, when a newly germinated plant is underground and therefore without sunlight, the cotyledons provide it with nutrients with which to grow.
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One of the main challenges was reproducing with out the water. This was eventually made possible with spores. However the spoors still needed to be close to the water other wise they would die. Seeds came around later and solved the problem. The seeds provide the nutrients that the plant needs untill it can support itself.