Answer:
The composition of the stars
Explanation:
 
        
             
        
        
        
predators, gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
 
        
             
        
        
        
You didn't provide us with any possible ways? Primary reinforcers are, however, types of reinforcers where they immediately elicit a reward or reward-like behavior once they are applied in a situation. An example would be apple juice. 
Secondary reinforcers on the other hand need to be associated with something for them to become reinforcers or they provide rewards in a non-direct way. An example would be money.
This is the main relationship between them.
        
                    
             
        
        
        
Answer:
The answer is C.
Explanation:
If the pressure is high enough, the cell would burst. In general, water would flow into the cell.
 
        
             
        
        
        
True, a vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen.