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The female part of (angiosperm) flowers inlcudes: the stigma, style, ovary and ovules. The male part of the flower inlcludes: the filaments, anther and pollen grains.
Flowers are the (sexual) reproductive organs of the plant, housing the male and female reproductive organs of the plant. Sometimes both male and female parts are house in the same flower, in other instances there are seperate male and female flowers on the same plant, and in other instances seprate male and female plants. The purpose of the flower is to attract polinators (insects, bats, animals etc.) to effect pollination - that is the movement of male pollen grains to the female sigma. Here the pollen grains germinate and eventually fuse with a female ovule which then develops into an embryo. The embryo then develops into a seed (above process is simplified!). See some of the other "Related Questions" for more information
A flower produce pollen sacs which has pollen grains in it
A bee is attracted to a flower from color, sweet nectar, etc... As the bee sucks up the nectar, pollen from the anther(s) gets stuck on the bee's body fur. When the bee moves on to the next flower, some pollen that was stuck to the bee from previous flowers falls off onto the stigma of the new flower.
The pollen grains from the stamen (male part) of the flower are transferred to the carpel (female part) of another flower to pollinate (fertilize) that flower.
There is a symbiotic relationship between a crab spider and a flower. The crab spider carry pollen grains to the other flowers when gathering nectar on these flowers.
A flowers pollen is located on the stamens.
The female structure in a flower is the pistil.
While taking nectar juice from the flowers, the pollen grains stick to the body of the butterfly and when the butterfly visits another flower, the pollen grains drop off and pollinate.
Pollination is the process in which pollen is transferred from the male part of a plant to the female part of a plant. This is how flowers reproduce.
Hummingbirds fly from flower to flower, sticking their beaks into the center to take sips of nectar. While sipping nectar, hummingbirds are inadvertently transporting pollen grains from previously sipped flowers. The process results in the cross pollination of different flowers, through the help of the hummingbird. Basically: Hummingbirds help flowers pollinate each other, which allows flowers to reproduce.
Flower> Stamen> Anther> Pollen grains.