Answer:
D.  
The zone has very few mammalian species that compete for the fish.
Explanation:
The zone has very few mammalian species that compete for the fish is the significance that the temperate zone have on commercial fishing.
 
        
             
        
        
        
The change in intractellular pH can potentially affect virtually all cellular processes. It includes metabolism, membrane potential, cell growth, movement of substance across of surface membrane, state of polymerization of the cytoskeleton and the ability to contract in muscle cell