Answer:
Option A, B, C
Explanation:
The major advantages of multienzyme complex over a metabolic pathway is that it do not require individual pathway for each enzyme activation or inhibition. Instead it responds efficiently to the equilibrium changes of substrate supply and demand as compared to that of enzymes. 
It tightly regulates the processes and is also faster than that of the metabolic pathway. 
Hence, option A, B and C are correct
 
        
             
        
        
        
I’m not sure if that’s the answer but what immediately pops up in my mind is the food chain. Primary consumers (herbivores) consume producers (plants). Secondary consumers consume primary consumers etc. At the end of the day, all kinds of animals die and decompose, providing nutrients for producers to grow, continuing the circle of life.
Lion is a top predator that hunts secondary consumers. Simba’s father died and contribute to the circle of life. I hope it gave you some pointers!
 
        
             
        
        
        
No. The answer is C, 1/4.
        
             
        
        
        
Answer:
 200g fruit
Explanation:
fruit = 500 x 40% = 500 x 40 / 100 = 
 = 500 x 0.4 = 50 x 4 = 200g