C. the flies could not get into the jar to lay their eggs
        
             
        
        
        
Answer:
True
Explanation:
Organic catalyst that increase the rate of biochemical reactions in the cells of living organism s are called enzymes.The are proteins with active sites which are specific to a particular  substrate, for enzyme-substrate complex and later enzyme product complex to formed.
They  act by lowering the activation energy  in the organic chemical reaction therefore increase the rate at which chemical reactions progress.
Hence when  the reactions are too slow,activation energy are high,because enzymes are not available to catalyze the reaction fixing the active sites with the the substrates.
 
        
             
        
        
        
Answer:
A. cell membrane
B. lysosome or ribosome, could be either one lol
C. nucleus
D. rough ER
E. smooth ER
F. golgi apparatus
G. nucleolus