The most common cause of high potassium levels is kidney disease. Potassium is important to heart function. Your doctor may order this test if you have signs of high blood pressure or heart problems. Small changes in potassium levels can have a big effect on the activity of nerves and muscles, especially the heart. Low levels of potassium can lead to an irregular heartbeat or other electrical malfunction of the heart.
Look up viable or viability in Wiktionary, the free dictionary. Viability is the ability of a thing (a living organism, an artificial system, an idea, etc.) to maintain itself or recover its potentialities. Viability or viable may refer to: 1 Biology, medicine or ecology.
Heritability Broadly, heritability is the proportion of variation (more strictly variance) in a phenotypic character in a population that is due to individual differences in genotype. Narrowly, heritability is the proportion of variation (more strictly variance) in a phenotypic character in a population that is due to individual genetic differences that will be inherited by the offspring. There are three possible ways to estimate the heritability of a real character: â¢ One method is to cross two pure lines. (This is mainly of interest in applied genetics, where the problem might be to breed a new variety of crops; it has little interest in evolutionary biology.)