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.
Colors (vision) with 30+ answers. Human cones in the eye are more sensitive to green frequencies than any other. Each individual cone contains pigments composed of opsin apoprotein, which is covalently linked to either 11-cis-hydroretinal or more rarely 11-cis-dehydroretinal.