It’s been a while since I did this but B sounds the most accurate.
        
             
        
        
        
Answer:
The control variable is the soldier. 
Explanation:
The same soldier is used throughout the test
 
        
             
        
        
        
Answer:
28 day orbit around Earth.
Explanation:
This is called the Lunar phase. The lunar phase or phase of the Moon is the shape of the directly sunlit portion of the Moon as viewed from Earth.
 
        
             
        
        
        
The answer is D.Angiogenesis
<span>♡♡Hope I helped!!! :)♡♡
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