Report Abuse. Another way to find the percentage is to use a proportion. 8/25 = X/100 All you have to do is solve for X. 800 = 25X 800 / 25 = 37. So, 37% of the people say they fear heights. (As the first person pointed out.).
Pigmentation. Heavy pigmentation is one predisposing factor for iris melanoma in cats. Melanocytes are concentrated in the back portion of the iris, behind the cells that give your kitty's eyes their normal color. Dark colored cats have larger numbers of melanocytes everywhere, including the iris.
Melasma Causes. Melasma is usually caused by the sun, hormones in birth control pills, hormone replacement therapy, medications and pregnancy. When Melasma is caused by pregnancy it is called chloasma. In some women, when the skin is exposed to sunlight, brown blotches of excess pigment form due to the interaction with hormones or chemicals. Melasma is believed to be hereditary and woman with darker skin tones tend to be more at risk for this disorder.