Cells do need food. In a process known as cellular respiration, cells convert biochemical energy (oxygen as food) from nutrients into adenosine triphosphate (ATP), and then release waste products.
hope this helps.. :D
 
        
             
        
        
        
The spinal cord is in the backbone (aka spine). The spinal cord is part of the central nervous system 
How I remember where the spinal cord is the root of the words spine and spinal cord is similar
Hope this helped!
~Just a girl in love with Shawn Mendes
 
        
             
        
        
        
Resolving power<span> is the ability of an imaging device to separate (i.e., to see as distinct) points of an object that are located at a small angular distance or it is the </span>power<span> of an optical instrument to separate far away objects, that are close together, into individual images.</span>
        
             
        
        
        
Answer:
Increasing the alveolar ventilation rate will increase the partial pressure of oxygen in the alveoli. 
Explanation:
Alveolar Ventilation rate is the rate of air flow in the alveoli of the lung during normal breathing. It is measured in milliliters of air per minute (mL/min). The alveolar ventilation rate is an important factor in determining the concentrations (partial pressures) of oxygen and carbon dioxide in the functioning alveoli. 
A high rate of alveolar ventilation, would result in a rapid influx of oxygen-rich air and efflux carbon dioxide-filled air from the alveoli.  This ultimately results in an increase in the concentration of oxygen and a decrease in the concentration of carbon dioxide within the alveoli.
Effects of alveolar ventilation on partial pressures of alveolar carbon dioxide and oxygen (PACO₂ and PAO₂)
If the  alveolar ventilation rate is increased (and carbon dioxide production is unchanged), then the partial pressure of carbon dioxide in the alveoli, PACO₂ will decrease.
If the  alveolar ventilation rate increases, then the partial pressure of oxygen in the alveoli, PAO₂ will increase.