All photosynthetic organisms  <span />
        
                    
             
        
        
        
Answer: Divide each weight expressed 
Explanation: If your first test is 20 percent of your grade, divide 20 by 100 to get 0.2. If your second test is worth 30 percent and your final test is worth 50 percent, divide 30 and 50 by 100 to get 0.3 and 0.5.
 
        
             
        
        
        
Answer:yes
Explanation:
Ion pumps are assemblies of integral membrane proteins, like ion channels, that modulate ion transport into and out of a cell or organelle, leading to generation of electrical signals. Ion pumps, however, work against their concentration gradient, so require energy input, but the energy can also be derived from the concentration gradient of another ion.
 
        
             
        
        
        
In my opinion, I think it would be granite rocks.