<span>Geographically isolated populations may live under different environmental conditions, which can lead to each of these separated populations adapting differently to these different conditions. Given enough time, these little changes can lead to those populations diverging into distinct species after so many successive generations. </span>
        
             
        
        
        
19.69 million barrels per day.
        
                    
             
        
        
        
Organism in an eniornment can compte for food
        
             
        
        
        
Answer:
Look below.
Explanation:
A tertiary consumer is an animal that eat primary consumers and secondary consumers. From this knowledge we can conclude that the tertiary consumer is the mountain lion since nothing consumes the animal and it is on the top of the food web for consuming the most energy.
 
        
                    
             
        
        
        
A solution that maintains its ph within a narrow range is called a buffers.