Answer:
separate or unzip the two strands of the double helix. 
Explanation:
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It is also assists in creating body chemicals like hormones and enzymes that are needed for normal function. It provides energy (like carbohydratesdo) and keeps the immune system strong. Proteins are made up of amino acids, and dogs require 22 amino acids to make necessary proteins.
        
             
        
        
        
<span>The answer is B) cell wall. The cell wall is a structure important cell protection and shape. It is necessary for the survival of unicellular organisms, such as Archaea and bacteria. Plants, some fungi, and algae also have cell walls with major function in structural support and protection against environmental conditions and infection. However, animal cells do not have cell walls.</span>
        
                    
             
        
        
        
The answer tot his question is:
<span>Fill in the blank. 
</span>A scientific ___________ is a proposed explanation that can be tested."<span>Scientific Theory."
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