There is no doubt that bees and flowers evolved simultaneously. Even as they ensure their own survival by gathering food they ensure the survival of plants by pollinating them. In the absence of bee pollination these plants would disappear and many animals would be deprived of an important food source Bees need humans to be careful with insecticides, pollution and over developing which destroy the flowers needed by them to survive. Humans need honey bees for honey and beeswax. But mostly humans need honey bees for the pollination of fruits, nuts, vegetables, and forage crops that animals and humans use for food.
Plants also prevent erosion and produce oxygen.
Without plants neither honey bees or humans would survive. Humans have to be careful so that there can continue to be honey bees and humans through the centuries to come. A lesson From The Bees. Disney's Wonderful World of Knowledge, Danbury Press, vol. Children's Britannica 1994, vol.2 p. 278-284. 3.