Answer:
D
Explanation:
Two sex cells, the gamete and the sperm, come together to make the body cells, so the number of chromosomes for a body cell must be double that of a sex cell, 46/2=23
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Answer:
Binding the rna polymerase to the promoter sequence 
 
        
             
        
        
        
The plants absorb light energy into chemical energy. This energy is used by the plant for fuel. The byproduct of photosynthesis is Oxygen. That is why plants are so beneficial for air quality