The vertebrate cerebrum (brain) is formed by two cerebral hemispheres that are separated by a groove, the medial longitudinal fissure.The brain can thus be described as being divided into left and right cerebral hemispheres.n eutherian (placental) mammals, the hemispheres are linked by the corpus callosum, a very large bundle of nerve fibers. Smaller commissures, including the anterior commissure, the posterior commissure and the hippocampal commissure also join the hemispheres and these are also present in other vertebrates.
Although today ubiquitous across the globe, the peanut (Arachis hypogaea) was native only to South America, and it is believed to come from the foothills of the Andes in Bolivia and Peru. Ancient, anthropologists have found evidence of peanut cultivation dating back at least 7,600 years.
While there are many varieties of peanuts, the ones most commonly found in the marketplace are the Virginia, Spanish and Valencia. Due to their high protein content and chemical profile, peanuts are processed into a variety of different forms, including butter, oil, flour, and flakes.