the ability to maintain a constant internal environment in response to environmental changes.
Hope this helps!
        
             
        
        
        
We all need to work together, I think is one. Can't really think of another example though.. sorry
        
                    
             
        
        
        
If humans stop hunting , stop overgrazing then the kit fox population can be protected.
Explanation:
As we know that human beings are considered as most intelligent species , so it is the duty of the human beings to protect the animals. Human can protect the animals by reduction in hunting, by planting more trees, by reducing pollution.
 Previously kit fox was considered as endangered species but later in the year 1971 it was considered as threatened species as there was destruction in habitat. Due to livestock grazing ,shrubs are being destroyed as a result there is fall in prey abundance and the kit foxes suffer due to lack of food. 
 
        
                    
             
        
        
        
C. Amino Acids. 
Proteins consist of strands of amino acids, which is produced in the ribosomes of the cell.
        
             
        
        
        
Burning paper is a chemical change not a physical one. Hope this helped <span>
ノ◕ヮ◕)ノ*:・゚✧</span>