This question is not clear, but I think I understand what you are asking. The difference between alleles of a gene is that some alleles may be dominant or recessive. If one gene has more dominant alleles than another, than it will be more visible.
 
        
             
        
        
        
Provide commercial/recreational opportunities without adversely impacting wild populations (i.e. overharvest).
        
             
        
        
        
Answer:
Disadvantageeous trait
Explanation
Since the moth is not high up in the food chain, it would want to hide from others by blending in with its surroundings rather than be easily seen as that would just make it easier for them to become easy prey for anything higher up in the food chain nearby.
 
        
                    
             
        
        
        
True 
Hormones released by the endocrine system travel in the blood until they find their specific target cell it is true.
hope this helps!
 
        
                    
             
        
        
        
1). A good example for mutualism is People and plants.  We provide plants Carbon dioxide.  Plants provide us Oxygen 
2).Biome is where you have your tundras, Rain forests, Deserts, etc.  then you have to give 3 characteristics like temperature, precipitation levels, soil type, etc.
I will have to get to question 3 later since im in class but ill give you the answer to that one.  its easy