Hemophilia (heem-o-FILL-ee-ah) is a rare bleeding disorder in which the blood doesn't clot normally. If you have hemophilia, you may bleed for a longer time than others after an injury.
Aphids: There are five species of aphids commonly found on apples: apple grain aphid, rosy apple aphid, apple aphid, spirea aphid and the woolly apple aphid. The aphid species can be identified by their color, the time of year when they are present and by differences in the cornicles, which are small paired projections from the rear of aphids.
There are about 90 species of oaks in North America. All oaks have acorns. There is no such thing as an Acorn Tree. Acorns belonging to trees in the Red Oak group take two growing seasons to mature; acorns in the White Oak group mature in one season.