NADH and FADH2 are used in the next step of the aerobic respiration(electron transport chain) for their electrons, the energy they store in the electrons to be precise
 
        
                    
             
        
        
        
<h3>C.Green only</h3>
At low light levels, green leaves are most efficient at photosynthesis. But well yeah, in sunny days, red light will work the same as green light
 
        
        
        
Answer: The correct answer is- B) Ecosystem.
Ecosystem can be described as a group of living organisms present in a particular area that are interacting with each other as well as the non living components of that environment. 
In other words, it is the interaction between biotic ( living such as plants and animals) and abiotic ( non living such as temperature, air, water) components of an environment.
Example- Pond ecosystem, lake ecosystem. 
 
        
                    
             
        
        
        
Answer:
It will decrease in size and it will pinch to surround anything entering the cell.
 
        
             
        
        
        
Answer:
I think the answer is B. 
Explanation:
I think this because they have these variations to better adapt to conditions in their environments.