DNA = thymine, Guanine , adenine and cytosine . 
RNA = thymine ,uracil,guanine ,cytosine
        
             
        
        
        
Answer:
Withdrawal methods, breast feeding methods 
 
        
             
        
        
        
Answer:
Explanation:Define as it relates to adaptation 
 
        
             
        
        
        
Answer:
Aerobic respiration is the process of producing cellular energy involving oxygen. Cells break down food in the mitochondria in a long, multistep process that produces roughly 36 ATP. The first step in is glycolysis, the second is the citric acid cycle and the third is the electron transport system.
 
        
             
        
        
        
The answer is Habitat. The brackish water environment is formed due to the mixing of fresh water from the river with the salty waters of the ocean. This habitat is significant for fishes that come to spawn and feed. Crabs, mosquitoes and birds can also be found in this environment.