In DNA, the "rungs" between the two strands of DNA are formed from the nitrogenous bases adenine, thymine, guanine and cytosine
        
             
        
        
        
depends bc i have conflicting thoughts on it like safety, fame, etc. but probably not....
 
        
             
        
        
        
Answer:
Option A
Explanation:
Only an autotrophic species can convert methane into food.  
Deep below the sea, methane and hydrogen sulfide are found in abundance. These gases get mixed into the sea water.  
Autotrophic bacteria containing phosynthetic pigments oxidize these dissolved gases thereby producing food.  
Hence these autotrophic bacteria’s will be considered as producers as they produce food.  
Thus, option A is correct.
 
        
             
        
        
        
The answer is D. our body generates new cells
        
             
        
        
        
Answer: vitamin C and calcium
Explanation: