If the receptors were at the front of the retina, the pigment cells would have to be between them and the next layer of nerve cells, in a region already packed with axons, dendrites, and synapses. As it is, the layers in front of the receptors are fairly transparent and probably do not blur the image much.
The definition of impervious is not being able to be penetrated or not able to be hurt. 1  An example of impervious is a fabric that does not allow any liquid to pass through. 2  An example of impervious is a figurine made out of indestructible material.
â The percentage of the lot area that is covered by building area, which includes the. total horizontal area when viewed in plan. Impervious cover â Any structure, surface or improvement that reduces and/or prevents absorption of storm water into land.5 Neptune Boulevard â¢ Neptune, New Jersey 07753 Tel. 732.988.5200 â¢ Fax 732.775.7600 â¢ www.neptunetownship.org Calculating Building and Lot Coverage Percentages Definitions Building coverage â The percentage of the lot area that is covered by building area, which includes the total horizontal area when viewed in plan.