Antibiotics added to livestock feed have been found to increase their growth rate, reduce incidence of infection, reduces mortality and improve feed conversion ratio or feed efficiency.
        
             
        
        
        
Answer:                              The correct option is b (false). 
Explanation:                         As is is cleared from the figure that when lactose is absent, the lac repressor binds tightly to the operator. It gets in RNA polymerase's way and prevent transcription. 
 
        
                    
             
        
        
        
The stages of meiosis PMAT prophase Metaphase anaphase telaphase
        
             
        
        
        
<span>The myelin sheath allows nerve impulses to propagate very quickly along a nerve's axon to transport the signal between nerve cells. The myelin coating allows the chain reaction of impulses to jump certain distances instead of waiting for the chemical changes to happen at all points on the axon.</span>
        
             
        
        
        
False, precipitation falls from the atmosphere to the earths surface.