Vanni wakes up while his room is still fairly dark. he looks over and sees his shirt hanging on a hook. vanni knows it's his red shirt because he hung it there before going to bed, but in the dark it looks gray to him. this is because in the dim light, the in vanni's eyes are ineffectual.

Cones

Explanation:

Cones cells or cones are photo receptor cells in the retina of vertebrate eyes. Cones give response differently to light of a different wavelength that is responsible for color vision and functions best in relatively bright light as opposed to rod cells which work better in dim light. Cone cell is highly dense in fovea centralism. There are millions of cones that are mostly found in the macula. The cones are less sensitive then rode to the light but allow the perception of colors. They are also able to perceive finer details and more rapid changes in the images because of their response to the stimuli faster than the rode. The cones are found in cylindrical form, or shape.

the following men who did not in the unification of italy were.

a) giuseppe mazzini

c) alexander ll

the other two men were camilo cavour and giuseppe garibaldi they the unification of italy by yielding territories in the italian unification. in 1861 italy was declared a united-nation state under the sardinian king victor immanuel ll.