The Border Crossing Card (BCC) is acceptable as a stand-alone document (by itself) only for travel from Mexico by land, or by pleasure vessel or ferry. Together with a valid passport, though, it meets the documentary requirements for entry at all land, air, and sea ports of entry (to include travel from Canada).
Anthecology is the scientific study of pollination. Insect pollinators include bees, (honey bees, solitary species, bumblebees); pollen wasps (Masarinae); ants; a variety of flies including bee flies and hoverflies; lepidopterans, both butterflies and moths; and flower beetles.uglossine bees pollinate orchids, but these are male bees collecting floral scents rather than females gathering nectar or pollen. Female orchid bees act as pollinators, but of flowers other than orchids. Eusocial bees such as honey bees need an abundant and steady pollen source to multiply.
Usually bees collect pollen from entomophilous plants that produce and the nectar. But in some periods of the season (especially in the early spring) when the honey plants are not yet in bloom or very few of them are in bloom, bees take this food from wind-pollinated plants.