Answer:
Light travels in straight lines.
Explanation:
Once light has been produced, it will keep travelling in a straight line until it hits something else.
 
        
             
        
        
        
Answer: ATP releases energy when it converts to ADP .
Explanation:
During energy needs, the body cells directs the loss of a phosphate group (Pi) from ATP (Adenosine triphosphate) to yeild ADP (adenosine Diphosphate), and a further loss will yield AMP (adenosine monophosphate). For each loss energy is also released when a phosphate is removed
The reaction involves the addition of water, so it is a hydrolytic reaction, and is catalyzed by enzymes of the mitochondria, and is represented as the equation below:
ATP + H2O → ADP + Pi + free energy
 
        
             
        
        
        
Distantly related organisms may be similar if they live in Similar environments 
 
        
             
        
        
        
Answer:
The use of music
Explanation:
<em>The independent variable in the example is the use of music.</em>
The independent variable in research or experiment is a variable whose value is not affected by any other variable. That is, the value of an independent variable is not influenced by any other variable.
<u>In this case, the use of music stands alone and is not influenced by any other variable in the experiment. In actual fact, the use of music's effect is being tested in the experiment and hence, is not in itself influenced by any other variable.</u>
 
        
             
        
        
        
Answer:
The Independent or Manipulated Variable
Explanation:
The Independent or Manipulated Variable is the variable that is changed by the researcher.  The Dependent or Responding Variable is the result of that change.