James Monroe (1758-1831), the fifth U.S. president, oversaw major westward expansion of the U.S. and strengthened American foreign policy in 1823 with the Monroe Doctrine, a warning to European countries against further colonization and intervention in the Western Hemisphere.arly Years. James Monroe was born on April 28, 1758, in Westmoreland County, Virginia, to Spence Monroe (1727-74), a farmer and carpenter, and Elizabeth Jones Monroe (1730-74). In 1774, at age 16, Monroe entered the College of William and Mary in Williamsburg, Virginia.
Zygomatic bone. Zygomatic bone, also called cheekbone, or malar bone, diamond-shaped bone below and lateral to the orbit, or eye socket, at the widest part of the cheek. It adjoins the frontal bone at the outer edge of the orbit and the sphenoid and maxilla within the orbit.
A spermatozoon joins an ovum to form a zygote. (A zygote is a single cell, with a complete set of chromosomes, that normally develops into an embryo.) Sperm cells contribute approximately half of the nuclear genetic information to the diploid offspring (excluding, in most cases, mitochondrial DNA).