B is the correct answer I think but may be wrong.
        
             
        
        
        
<span>Respiratory rate of 8 breaths/minute</span>
        
             
        
        
        
Cardio respiratory i believe. correct me if i’m wrong
        
                    
             
        
        
        
1) true       2) true        3) true         4) i think thats false
5) false     6) false   7) false    8) true
9) true    10) false    11) false    12) true
13) false    14)true    15) false   16) false
17) true   18) false    19) true   20)true
 
        
             
        
        
        
Answer: In one study, exercise stimulated the human brain's ability to maintain old network connections and make new ones that are vital to cognitive health. Other studies have shown that exercise increased the size of a brain structure important to memory and learning, improving spatial memory.