Answer:
Hydrogen gas has the highest calorific value of 150 KJ/g among all the fuels. So, hydrogen gas is considered to be an extremely good fuel.
Explanation:
 
        
                    
             
        
        
        
The hormone testosterone promotes sexual desires in both males and females
        
             
        
        
        
Answer:
D) The structural genes will be transcribed continuously.
Explanation:
Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome.  If she moves the operator to the far end of the operon, past the transacetylase (lacA) gene, the structural genes will be transcribed continuously.
A structural gene is a gene that codes for any RNA or protein product other than a regulatory factor (i.e. regulatory protein).
 
        
             
        
        
        
I think the correct answer from the choices listed above is option C. The continent that was not covered by ice during the Pleistocene ice age. This is because the southern location of this nation made it much harder for ice to form, even during this time. Hope this answers the question.