Fat membrane metabolic disorder facts hamster cells were marked with a blue dye and membrane proteins
        
             
        
        
        
Answer:
I believe the answer is A
Explanation:
I think it is A because the original function of the spinal cord is to complex organization of nerve cells responsible for movement and sensation. It carries signals between the brain and the rest of the body.
 
        
                    
             
        
        
        
Coal is considered a non renewable source because the earth cannot replenish it.
        
                    
             
        
        
        
Answer:
b. hibernation to lower metabolism in the winter
Explanation:
Tundra, besides the one I live in apparently, are very, very dry because of the cold. This means that it may be helpful to hibernate for the part of the year where it is even too cold for plants and other animals.
 
        
             
        
        
        
Answer:
C. a single strand and contains uracil.
Explanation:
DNA has 4 bases: adenine, cytosine, guanine, and thymine and is double stranded while RNA is one stranded and instead of thymine, it uses uracil.
Hope this helps :)