A catalyst decreases the activation energy and increases reaction rate that is needed.
        
             
        
        
        
The proteins in the cell membrane allow the nutrients to go and waste to go out <span>of a cell. Water passes through the cell membrane without the help of proteins.</span>
        
             
        
        
        
Answer:
The movement of glucose across the cell membrane through facilitated diffusion one of the form of passive transport because it does not require the energy to transport the glucose molecule across the cell membrane and the transport is along the concentration gradient.
In facilitated diffusion the passage of molecules if facilitated by a carrier protein or a channel protein. The rate of transport of molecules in facilitated diffusion is greater than simple diffusion.  
Through facilitated diffusion, some polar and charged molecules can cross the cell membrane without the expense of energy. 
 
        
             
        
        
        
Answer:
 Due to the moths light color it won't be able to blend in with the darkly colored trees therefore being easily seen by predators.
 
        
             
        
        
        
<span>Organism that has both male and female reproductive organs and can perform both the male and female parts of reproduction.</span>