Answer:
The answer is Water droplets sticking to a window.
 
        
             
        
        
        
A pathogen that has nutrients absorbed from its environment is called fungus. Fungus is a eukaryotic microorganism that is a heterotroph and  acquire its food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment
        
             
        
        
        
I wanna say A. Desert 
Hope this helps!!