Research Papers. 1  Establish your topic. 2  Look for sources of information. 3  Read your sources and take notes. 4  Organize your ideas. 5  Write a first draft. 6  Use footnotes or endnotes to document sources. 7  Write a bibliography. 8  Revise the first draft. 9  Proofread the final draft.
The Retina. The retina is a light-sensitive layer at the back of the eye that covers about 65 percent of its interior surface. Photosensitive cells called rods and cones in the retina convert incident light energy into signals that are carried to the brain by the optic nerve.
1 Follow the exercise and diet tips discussed in this article to lose exâ¦. 2  Rods and Cones Each human eye contains about 120 million rods and 6 million cones. 3  These photoreceptors, located in the retina of the eye, are named after their shape.