Bees are crucial for agricultural pollination because they are efficient pollinators. As they move from flower to flower collecting nectar and pollen, they inadvertently transfer pollen between plants, which fertilizes the flowers and allows them to produce fruits and seeds. This process is essential for the reproduction of many plants, including a large variety of crops that are important for human food supply. Without bees and other pollinators, many plants would not be able to reproduce, leading to decreased crop yields and potential food shortages.