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.
Melanoma occurs when something goes awry in the melanin-producing cells (melanocytes) that give color to your skin. Normally, skin cells develop in a controlled and orderly way â healthy new cells push older cells toward your skin's surface, where they die and eventually fall off. But when some cells develop DNA damage, new cells may begin to grow out of control and can eventually form a mass of cancerous cells. Just what damages DNA in skin cells and how this leads to melanoma isn't clear. It's likely that a combination of factors, including environmental and genetic factors, causes melanoma. Still, doctors believe exposure to ultraviolet (UV) radiation from the sun and from tanning lamps and beds is the leading cause of melanoma. UV light doesn't cause all melanomas, especially those that occur in places on your body that don't receive exposure to sunlight.