Blue Tarantulas. In a way itâs a shame that most people think of the standard Chile Rose Haired and the Curly Haired spiders when they think of tarantulas because many people think that all tarantulas are a boring brown color. Of course this couldnât be further from the truth and if you know what species to look [â¦]
Answer: The black dot in your eye is called a pupil, it contracts and widens to regulate the amount of light entering the eye. It is really just a hole in the center of yo â¦ ur eye that allows light to pass through, that is really it. + 6 others found this useful. Sharon Robinson.
The very back of the eye is lined with a layer called the retina which is similar to the film in a camera. The retina is a membrane containing photoreceptor nerve cells that line the inside back wall of the eye.he hole in the center of the iris is called the pupil and the coloured part of the eye is the iris. The retina is very important as it is the inner lining of the eyeball. Receptor cells called rods and cones make up the retina. Black and white vision is seen by the rods and color vision is received by the cones.