This is a close up picture on the center part of a sunflower. This part of the sunflower has pollen. Pollen is the fertilizing element of plants. It consists of a fine, powdery, and generally yellow substance, as seen above. Pollen is excreted from the male part of the flower. Each grain contains a male gamete that can fertilize the female ovule. Pollen is transferred from plant to plant by wind, insects, such as bees, and other animals.
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