So, if the birthrate and the death rate are the same, that means that for every person that gets born, one person dies: so the number of people would stay constant. This means that the growth rate is actually 0%.
        
             
        
        
        
There are so many examples for that in different areas, like TPT1 experiment carried out in our lab recently.Here's one link: http://www.alfa-chemistry.com/tpt1-cas-167218-46-4-item-290583.htm
 
        
             
        
        
        
... During this process, plants cleave the carbon from the two oxygen molecules and release the oxygen back into the surrounding environment. Plants are thus primarily responsible for the presence of atmospheric oxygen. 
PLS REPHRASE a bit SO YOU DONT GET BUSTED FOR PLAGIARISM
        
                    
             
        
        
        
Answer: B. Lungs
Explanation:
The lungs are the only organ in the body that can float on water.
 
        
             
        
        
        
Artificial selection is a process during which humans intentionally breed organisms with desirable traits. The answer is B.