Answer:
D. Tap water out of a steel bottle
Explanation:
 
        
                    
             
        
        
        
The degree to which chromatin is compacted greatly affects its accessibility for transcription, and thus, gene expression.
<h3>What is Transcription?</h3>
This is the process which involves copying a segment of DNA into RNA in organisms.
When chromatin is condensed, DNA becomes less accessible for transcription factors and vice versa which was why it was chosen as the most appropriate choice.
Read more about Transcription here brainly.com/question/1048150
 
        
             
        
        
        
5. System level 
6. Organ level
        
             
        
        
        
Answer:
photosynthesis
Explanation:
the formula for photosynthesis is 
6CO2 + 6H2O + Light energy → C6H12O6 (sugar) + 6O2 +ATP