They do the same thing that all living and breathing things do! They breathe! When they breathe they are doing the same thing you are doing all day everyday. Inhaling oxygen and exhaling carbon dioxide.
        
             
        
        
        
If it doesnt have a nucleus or a cell wall it is a prokaryote. also prokaryotes displayed in pictures tends to be longer
        
             
        
        
        
Answer: B. The stream will have fewer plants growing
Explanation:
 
        
             
        
        
        
It is called a semi-permeable membrane. Most eukaroytic cells have this.
 
        
             
        
        
        
Metabolism (aka basal metabolic rate)!
How I remember this is the amount of energy someone in a coma would need to maintain a healthy weight
Hope this helped!
~Someone who loves Shawn Mendes very much