Population density is the aspect of population ecology of the black-tailed prairie dog does this statement describe.
Explanation:
Population density is the number of organisms are there in per unit area. It is used to measure geographical area occupied by organisms and its statistics.
In population ecology the structure, dynamics and contribution of population of species is studied. The idea of species distribution is studied in it.
The population density determines the number of species or members of particular population are present is a particular area.
An area of  low density population will have more resources and more area per organism and less competition for resources and vice versa for high density population.
Prairie dogs have 12 adults per hectare of area this tells the population density of the rodents.
 
 
        
             
        
        
        
I believe the lowest orange square would
        
                    
             
        
        
        
Glassy, because luster refers to its ability to shine/sparkle etc
        
                    
             
        
        
        
In terms of chemistry, saturated fats contain the maximum number or greatest amount of Hydrogen atoms covalently bonded to both the end and internal or middle carbons. Thus, there are no carbon to carbon double and or single bonds present. 
Unsaturated fats though do have at least a minimum of 1 carbon to carbon double and or triple bond for the inverse or opposite explanation of what was mentioned, that it does not have the maximum number of hydrogen atoms within the internal and or external carbon atoms in the structure of the organic compound.