1 Clean your brush and use clean water or a second color to paint inside the outline, being sure to blend with the outer color. 2  Leave the middle white. 3  For a dark center, paint it in once the flower has dried.  For a light center, paint it while the flower is still wet to blend.
The main function of vitamin A is to support vision, especially in dim lighting, by creating pigments that are needed to help keep the retina of the eye healthy. It also helps produce the protein rhodopsin, which absorbs light in the retina. In addition, vitamin A helps support the growth and development of the cornea and other membranes of the eye.
Vitamin A is a fat-soluble vitamin that acts as an antioxidant. Antioxidants are chemicals which may help reduce risk of cancer. Since vitamin A is fat-soluble it is not needed in daily, large quantities. Fat-soluble vitamins are stored in the body in organs such as the liver.Most of the vitamin A that we consume goes to the liver to be stored until it is needed by another part of the body.he form of vitamin A found in fruits and vegetables is known as carotenoids. The most common type of carotenoid is-carotene (beta carotene). These carotenoids are used to build the type of vitamin A used by our body. Vitamin A is important to vision and the growth of the bones.