Answer is A. Alleles
Hope this helps
        
                    
             
        
        
        
Dextromethorphan. This is a drug that is used for this purpose and is considered an anti-tussive.
        
             
        
        
        
Answer:
A.) a substance with ph between 0 and 7.
Explanation:
as acid has pH value between 0 to 7.
 
        
                    
             
        
        
        
Answer:
Scientists are perhaps some of the smart few that make up the human population and are never short on knowledge. They research and discover and conduct tests to gain more knowledge, but the answer to your question is stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores, and scientist know this because of their research.
Explanation:
 
        
             
        
        
        
<span>Transcript of A Cell is like a Factory. The cytoplasm contains the organelles, just likehow the factory floor contains all the machines and workers. The ER is where the ribosomes do there work to create proteins. ... The cell membrane regulates what enters and leaves the cell, similar to factories shipping department.</span><span>Sep 23, 2014</span>