Answer:
Masks are a simple barrier to help prevent your respiratory droplets from reaching others. Studies show that masks reduce the spray of droplets when worn over the nose and mouth.
Explanation:
 
        
             
        
        
        
Meiosis produce variations in daughter cells whereas mitosis produce identical nuclei.
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 Students hypothesized that adding lactose to a sixth test tube would produce the greatest amount of carbon dioxide.
This is because lactose is a sugar molecule that is the food source for the yeast.
Fermentation is a metabolic pathway that occurs anaerobically, meaning in the absence of oxygen (O2). It includes the process of glycolysis with some extra reactions which make alcohol.
 
        
                    
             
        
        
        
I guess it science Oklahoma And ecosystem and protozoans Andrew And thanks
        
             
        
        
        
Answer:
What?
Explanation:
I don't understand the question.
Which structure are you talking about??