蜜蜂从花粉中采集花蜜。

is collected from flower pollen by bees. As bees collect nectar, they inadvertently transfer pollen from one flower to another, facilitating the process of pollination. This exchange of pollen is crucial for the fertilization of plants, leading to the production of seeds and fruit. By performing this essential task, bees play a vital role in maintaining biodiversity and supporting ecosystems.