Seeds are naturally planted in the ground, though some seeds are grown using a hydroponics system. Within the seed is endosperm, which is basically food that can nourish the seed when it first begins growing. The seed must collect moisture in order to germinate, so seeds planted in dry soil will remain dormant until they receive water. Moistening the seeds can cause them to germinate early. If the seed received adequate water and nutrients, the seed will split open and the seedling will come out. Seeds are very picky of when they germinate because many plants need very specific conditions in order to thrive. This occurs because the nutrients and water will cause the seed to grow too big for the seed's outer coating to contain it. This seedling grows and pushes through the soil until it emerges out of the soil.
The plant receives sunlight, which the plant combines with carbon dioxide and the nutrients in the soil in order to create chlorophyll, which is the source of the plant's food. Roots grow beneath the ground and absorb both nutrients and water. The plant continues to grow until it reaches a certain size. Some fruit plants become bushes; other fruit plants grow up very gradually into trees.
At some point, the plant will develop flowers. These flowers should not be picked since they will grow into fruit. These flowers contain nectar, which other organisms like bees feed off of. The process of feeding off the nectar gets pollen all over the bees. When these bees try to eat the nectar of other plants, they pollinate the plants. Once the pollen is within the ovary, the pollen grows a tube that travels into the ovule, where the sperm within the pollen travel to the egg cell within the ovule. The sperm and egg cell unite, creating a zygote.
The flower of the plant falls off, and the ovary of the plant starts to grow. With fruit, the ovary swells very large and the seeds form on the inside or outside of the fruit, depending on the species. How the fruit develops sometimes depends on how many ovules were fertilized on the plant. Animals that consume this fruit will spread the seeds around when they drop the seeds or when the seeds pass through the digestive system. This process allows the seed to reach soil and germinate, starting the cycle all over again.
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