Answer:
Your heart-rate increases
You're building neuropathways
You are building muscle mass
Explanation:
 
        
             
        
        
        
For continued survival
animals gotta eat
        
             
        
        
        
Answer: non living 
Explanation:
because it's not alive 
The FitnessGram PACER Test is a multistage aerobic capacity test that progressively gets more difficult as it continues.
The test is used to measure a student's aerobic capacity as part of the FitnessGram assessment. Students run back and forth as many times as they can, each lap signaled by a beep sound. The test get progressively faster as it continues until the student reaches their max lap score.
The PACER Test score is combined in the FitnessGram software with scores for muscular strength, endurance, flexibility and body composition to determine whether a student is in the Healthy Fitness Zone™ or the Needs Improvement Zone™.
 
        
                    
             
        
        
        
Hey pizzalover! The answer from this question would be
a. oxygen
Hope it helps
 
        
                    
             
        
        
        
I think Oxygen is the best answer.