Answer:
a
Explanation:
the kidney secretes an enzyme called rennin that helps to control blood pressure is not true the kidney does not secret rennin 
 
        
             
        
        
        
Some frogs are slimy because they are covered in a mucous coating. This coating helps them keep their skin moist which helps them breathe through their skin. The mucous often contains other chemicals, like antibacterial or anti fungals to help protect the frog.
I hope this helps you 
  
        
             
        
        
        
Answer:
B. 1,000,000
Explanation:
A pH of 14 is 1 x 10^-14 while a pH of 8 is 1 x 10^-8. 
So, all we have to do is subtract 8 from 14 and then solve it.
14 - 8 = 6 
1 x 10^6 = 1,000,000
 
        
             
        
        
        
The source code of transcription is mRNA.