if you are aking if that is true then yes but there are also secondary, primary consumers... decomposers... detritivores
 
        
             
        
        
        
I believe the answer is most likely 
C): 4
I hope this is correct and helps
 
        
                    
             
        
        
        
the skin has cells like that
 
        
             
        
        
        
Answer:
The correct answer is option C "determine how a star is moving (toward, away, fast, slow)"
Explanation:
All realized components emanate and assimilate specific frequencies of light, which is important for the electromagnetic range. By considering the frequencies of light (as demonstrated by 'lines' inside the electromagnetic range) discharged by an object in space, astronomers can get a scope of information.
 One thing they look at is the adjustment in situation of lines in the range from a star this can tell astronomers the distance away the star is, regardless of whether it is moving towards or away from us and how quick it is moving.
 
        
             
        
        
        
To predict a thunderstorm if the sky looks dark.