Answer:
<u>Breathing: </u>is the physical process of exchanging gases 
<u> respiration: </u>is a chemical process that takes place at a cellular level and produces energy.
 
        
             
        
        
        
Answer:
Viruses can show properties of living and non living because i believe viruses can be both! I hope this helps!
Explanation:
 
        
                    
             
        
        
        
Answer:
A
Explanation:
Sorry if I made an mistake on the answer
 
        
             
        
        
        
Answer:
Normally, the iron group in myoglobin has an oxidation state of 2+. However, when oxygen binds to the iron, it gets oxidized to an oxidation state of 3+. This allows the oxygen that is binded to have a negative charge, which stabilizes it. Myoglobin's affinity for oxygen is higher than hemoglobin.
 
        
                    
             
        
        
        
I did some research and found that the average human requires 550 L of
oxygen per day which means that : 
 
(550 L O2 / day) x (1 day / 24 hours) = 22.9166667 L O2 / hour or
22916.67 mL O2 / hour 
 
1 mL = 1 cm^3 
 
22916.67 mL O2 / hour = 22916.67 cm^3 O2 / hour 
 
Now convert that volume from cm^3 to nm^3 
 
22916.67 cm^3 O2 / hour = 2.29167x10^25 nm^3 O2 / hour 
 
So for 1 hour’s worth of O2, we need a volume of 2.29167x10^25 nm^3