It is possible for a patient to have gingivitis that is not caused by bacterial plaque. Gingivitis can be caused from an allergic reaction or fungal infection.

La comunicación en monos no es arbitraria. 

La complejidad de diseño del lenguaje se debe a la necesidad de facilitar la eficacia comunicativa. 

 Establishing a connection between two attribute tables (in two separate feature files) by finding an attribute common to both

A classification method where the interval is determined by class intervals on a geometric series (such as nested circles/ squares or radiating lines)  

 A range of colors indicates a progression of attribute values. Colors can vary in intensity, range, or both

A _________ is the fit of a theoretical sphere, spheroid, or geoid to a surface; these are used to apply measures of longitude and latitude to exact locations on Earth’s surface. WGS 84 (G1674)  NAD83 are examples. 

A  file that contains map data and associated data layer(s) and/or other map data such as attributes; a .mxd  file.

 A graph showing the distribution of values within a set of data.

All the data presented in various map layers is referenced to a single base map layer. An example would be a completed mapping project where all the pictures of the SPC campus buildings have been geo-referenced to the Pinellas County shapefile,