Answer:  C. 82.26%
Explanation:
Given :  The red blood cell counts of women are normally distributed with 


Let X be the random variable that represents the red blood cell counts of randomly selected woman.
Z-score : 
For X=4.2
 
For X=5.4
 
Now, the probability that the women have red blood cell counts in the normal range from 4.2 to 5.4 million cells per microliter will be :-

Hence, 82.26% of women have red blood cell counts in the normal range from 4.2 to 5.4 million cells per microliter.
 
        
             
        
        
        
global warming is a increase in earths overall temperture caused increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
to prevent global warming we could:
Drive less, Recycle more, Use less hot water, Plant a tree, Turn off electronic  devices when not being used such as a T.V 
all of these ideas save pounds of carbon dixoide and if you look above it is listed as a cause of global warming
 
        
                    
             
        
        
        
Answer:
B
Explanation:
The cell membrane is like a gate around the cell, it only lets certain substances come in and out of the cell.
 
        
             
        
        
        
MRNA, ribsomes,tRNAs, and many enzymatic factors