bee pollinating yellow sunflower, cross pollination, macrophotography

agriculture animal anther apitoxin apitoxina asexual attraction bee bees beeswax biodiversity birds botany bumble bumblebee close-up closeup crops cross cross-pollination diversity ecology ecosystem extinct fertilization flower flowering fly food geitonogamy genetic global hibiscus honey honeybee important insect macro macrophotography male nature nectar pest petal plant plants pollen pollinating pollination pollinator reproduction reproductive self sexual solitary spring stigma summer sunflower supply transfer venom wasp wildlife wing yellow