bacteria are classified as microbes
 
        
             
        
        
        
Gravity Probe B showed this to be correct, in 1905 Einstein determined that all laws of physics are the same for all non accelerating observers <span />
        
             
        
        
        
1. During intense exercise, where the energy output required from the cell exceeds the supply of glucose from the blood.
2. In an ischemic event, where perfusion is either disrupted through a clot, hemorrhage or systemic hypotension. 
        
             
        
        
        
Answer: the answer is fitness
Explanation:
Environment is where the organism lives
Population is the amount of organisms 
So fitness, also called Darwinian Fitness, is the correct answer