sentences:  Honey bees pollinate many plant species that are not native to their natural habitat but are often inefficient pollinators of such plants; if they are visiting ten different species of flower, only a tenth of the pollen they carry may be the right species.Other bees tend to favor one species at a time, therefore do most of the actual pollination.Most staple food grains, like corn, wheat, rice, soybean and sorghum, need no insect help at all; they are wind or self-pollinated.