Blood pressure is always given in the form of two numbers, one over the other, like a fraction. The systolic pressure is the upper number, and the diastolic pressure is the lower number. Both of these measurements are important. For example, a personâs BP reading may be 120/80 mmHg.
Chrysoprase, chrysophrase or chrysoprasus is a gemstone variety of chalcedony (a cryptocrystalline form of silica) that contains small quantities of nickel.Its color is normally apple-green, but varies to deep green. The darker varieties of chrysoprase are also referred to as prase.hrysoprase is cryptocrystalline, which means that it is composed of crystals so fine that they cannot be seen as distinct particles under normal magnification.
Certain species of the chrysanthemum flower have been used for hundreds of years as insecticides and repellants. The naturally occurring chemicals obtained from these flowers are called pyrethrins. Pyrethrins are one of the most common ingredients used in flea and tick control products for pets today. They work by disrupting the normal function of an insectâs nerve cell, causing it to fire impulses non-stop â ultimately leading to the insectâs death.