Bacteria cells, I believe so.
        
                    
             
        
        
        
<span>When the surface layer was dug up, the permafrost was exposed. When the weather warmed, this exposed permafrost would have melted and become soggy, causing the ground underneath the tracks to shift.</span>
        
             
        
        
        
Answer:
An immediate immune reaction to the initial infection with dengue virus
 
        
             
        
        
        
Answer:
b. quantitative observation 
if its wrong sorry.
hope this helps you ☺️☺️
 
        
             
        
        
        
Answer:
The answer is Carbon Dioxide