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.
Functions of Vitamins [edit]. Vitamin A: is used for growing healthy new cells like skin, bones, and hair. Also is used for surface lining upkeep of the eyes, urinary tract, intestinal tract, and respiratory system. Night vision is also assisted by Vitamin A. Vitamin A also performs other major functions in the body. vitamins help convert food often consumed as carbohydrates into fuel. They also help the nervous system function properly. Good sources of Vitamin B are bananas, potatoes, whole grans, and chili peppers. Vitamin C: helps regulate the immune system and relieve pain caused by tired muscles.