Enzymes reduce the activation energy allowing chemical reactions to occur in living things.
        
             
        
        
        
Answer: 
H. pylori (Helicobacter pylori) is a bacteria that maintains homeostasis of the human body by establishing chronic infection from ulcers and gastritis and using the method of autophagy to cleanse the body of damaged cells. H. pylori also contributes to the workings of the immune defense system. 
 
        
             
        
        
        
Answer:
the fact that rod functioning predominates during dark adaptation, therefore poor acuity
Explanation:
- Rods and cones are the photoreceptor cells present in the eye that perform the function of converting the light received into signals that stimulate the biological processes. 
- Out of the rods and cones, the rods are more sensitive and they are so sensitive that they can be activated even under low light conditions. 
- However the cones can be stimulated only under bright light conditions, but the visual acuity is higher for the cones as compared to the rods.
- <em>Therefore under conditions of dim light, the rods are activated and hence it results in a poor visual acuity and a person experiences difficulty in reading. </em>
 
        
             
        
        
        
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