Answer:
The disease has been absent from the population for a long time. 
 
        
                    
             
        
        
        
Answer:

Explanation:
Let
x ----> the surface area of a sphere
y ---> the volume of a sphere
we know that
The ratio of surface area to volume of a sphere is equal to divide the surface area by the volume of the sphere

we have

substitute the values

 
        
             
        
        
        
Answer: Option A.
Electrons,carbon and energy.
Explanation:
Chemorganoheterotrophs are organisms that uses organic substrates to produce carbon needed for their growth and development. They derive their energy from oxidation and reduction of organic substances. The use the reduced carbon produced by autrotophs as as source of electrons, carbon and energy. Example is fungi that uses carbon as electron donor and source for carbon and energy.
 
        
             
        
        
        
Answer:
stomach
Explanation:
uh stomach lol i mean when you swallow it goes to your stomach and you just digest it