Answer: Height is controlled by more than one gene
Explanation:
Polygenic = multiple-gene inheritance. If you break it down into it's roots poly = many and gen = gene, which literally translates to many genes.
 
        
                    
             
        
        
        
Bivalves are abundant and important parts of reefs.
        
                    
             
        
        
        
Answer:
They are also keystone species, playing an important role in maintaining the biodiversity of the ecosystems in which they live. During the dry season, elephants use their tusks to dig for water. ... Wherever they live, elephants leave dung that is full of seeds from the many plants they eat.
Explanation:
 
        
             
        
        
        
Not only did it burn up in our atmosphere and lose mass. Scientist believe it almost hit earth that went around the orbit and broke before it entered the atmosphere and one of the pieces is the moon.