They use a formula and that formula is 
People/Land Area=Population Density
        
                    
             
        
        
        
Answer:
Evolution is the gradual change in the inherited traits of a population over several generations. natural selection is a mechanism where the members of a population best suited to their environment have the best chance of surviving to pass their genes 
 
        
             
        
        
        
Answer:
A or 3 (Wether wich one is on your test) I TOOK THE TEST
Ill take brainliest 
100% Verified 
Explanation:
i took the test :D
 
        
             
        
        
        
Answer:Most organelles are common to both animal and plant cells. However, plant cells also have features that animal cells do not have: a cell wall, a large central vacuole, and plastids such as chloroplasts. ... Plants make their own food in a process called photosynthesis.
Explanation:
 
        
             
        
        
        
A. Cerebrum.................