Answer:When food, water, and space used by a population stay stable over time.
Explanation:
 
        
             
        
        
        
Answer:
The water molecules move by active transport into the cell from low water concentration to high water concentration
 
        
                    
             
        
        
        
An organism that cannot make its own food is called a heterotroph. All animals and species of fungi, along with some types of bacteria, are heterotrophs.
 
        
             
        
        
        
Answer:
C. 
Explanation:
Biodiversity refers to the number of unique organisms within a region. C best explains that with the 1200 species of plant.
P.S. Thanks for separating the options. It´s a small detail that helps my eyes.