I would say it would respond w/ it hurting and your gasping for air because when you run for a long periods of time u get a pain that hurt from running so much and because your dehydrated and ran out of breath
        
             
        
        
        
Answer:
A
Explanation:
This showed that at one point all continents were joined
 
        
             
        
        
        
Answer:
Paul uses Irradiation. The technique uses gamma rays
Explanation:
 
        
             
        
        
        
The hemoglobin that is about 65% saturated with o2 in a healthy resting person Systemic veins & pulmonary arteries. 
<h3>Define Hemoglobin?</h3>
Hemoglobin is a protein in red blood cells that takes oxygen to body's organs and tissues and elates carbon dioxide from organs and tissues back to your lungs. 
Thus, Systemic veins & pulmonary arteries are correct.
To learn more about hemoglobin click here:
brainly.com/question/15011428
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The answer is tunicates. Tunicates are commonly known as sea squirts and are in the Chordata phylum, even though they don't have a back bone. Which is really weird. But they just got put into the same category as humans. This is because they have a notocord and a back bone when they are larvae. But they lose all these when they become adults.