Answer:
heart blood vessels and blood 
 
        
                    
             
        
        
        
Answer:
D) competition
Explanation:
They are going to be competing for their survival.
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Answer:
The answer is C. Hope this helps
Explanation:
 
        
                    
             
        
        
        
The answer to this question is 
A Hypothesis allows you to make a prediction about future experiments , But a prediction is more specific and Prediction are using forms like ("IF" and "Then") and Hypothesis is more like a regular sentence 
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The answer is D, <span>Each daughter molecule contains one DNA strand from the parent molecule.</span>