There are two types of electron microscope, the Scanning Electron Microscope [SEM] and the Transmission Electron Microscope [TEM]. Scanning Electron Microscope shows the external and whole image of a specimen such as a dust mite, or a nit. The Transmission Electron Microscope is literally the opposite.
Combat Extremeâ¢ Southern Zone - is a 3-way mixture of turf type fescue and Hybrid Bluegrass which is heat and drought tolerant enough to be used in USDA Zones 8 - 10 (partial shade recommend for USDA Zone 9 and 10). This mixture is approximately 90% turf type fescue grass seed and 10% hybrid bluegrass seed by weight. By seed count, this makes almost a 50/50 blend of fescue and hybrid drought tolerant bluegrass.
Tall fescue is part of a large genus of fescue grasses known for their ability to put out extensive root systems. As a result, the grass tolerates drought conditions when properly established. In normal conditions, tall fescue does not require irrigation unless it wilts or shows signs of water stress.lashgordonphotog/iStock/Getty Images. Tall fescue (Festuca arundinacea) is a cool-season grass best suited to U.S. Department of Agriculture plant hardiness zones 4 through 7. Historically used for pastures, tall fescue's versatility and adaptability gave rise to several turf grass forms.