Food is the answer it’s that simple appreciate this sn I really don’t know I’m sorry ...
        
             
        
        
        
Crossing over. Parts of sister chromatids will sometimes switch places with the parallel part, resulting in a completely unique DNA sequence. 
        
             
        
        
        
Answer:
Both cardiac and smooth muscle are involuntary while skeletal muscle is voluntary.
Explanation:
 
        
             
        
        
        
The answer is D because this would help them to survive and is equal to natural selection
        
             
        
        
        
A rock is a solid mass of geological materials. It is a natural mass of mineral matter that makes up the earth's crust. 
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