As the experts says, solar eclipse do not happen always like lunar
eclipses do that is visible for a long periods of time and are observable. Unlike
solar eclipse, it happens hundreds and thousands of years to see it. Few people
can only see solar eclipse, and those only those people
who are in the small region where the Moon's umbra strike's Earth can witness
one. 
 
        
             
        
        
        
Answer: 
There are two pathways occur in the same cellular compartment, and, if both are on at the same time, a futile ATP hydrolysis cycle results. Using the same mechanism to turn them on/off or off/on is highly efficient.
- "Glycogen Phosphorylase" activity can be allosterically controlled ATP and G6P allosteric inhibitors, AMP allosteric activator as well as, controlled through covalent modification, phosphorylation and via hormones.
- Reaction Catalyzed by Glycogen Synthase:
The activity of glycogen synthase is subject to the same type of covalent modification as glycogen phosphorylase, however, the response is opposite. Glycogen Synthase is activated by G6P. It is also controlled via hormones.
 
        
             
        
        
        
Hello.
The answer is 
<span>B.They help produce plasma cells. 
Have a nice day</span>
        
             
        
        
        
Recall that DNA contains information required to bulid cellular protiens in eukaryotic. cells membrane that surrounds the nucleaus commoly called the nuclear envelope partitions this DNA from the cells protien synthesis machinery [which is located in the cytoplasm] i did that question in a test