Answer:
c) Negri bodies are a diagnostic sign of Rabies virus infection.
Explanation:
Rabies is an infection caused by rabies virus which affects the neurons and causes inflammation of the brain. It is a deadly disease and many animals are carriers of this disease like dogs, cats, raccoons, wolf, bats, fox, etc.  
It is diagnosed by the presence of Negri bodies in the cytoplasm of nerve cells. Negri bodies are inclusions that are round or oval shapes having a size between 0.25 to 27 μm. Negri bodies can be frequently diagnosed in Purkinje cells of the cerebellum and pyramidal cells of Ammon’s horn.  
Apart from these cells, they can be found in various ganglia, neurons of the tongue and other organs. So the correct answer is c.
 
        
             
        
        
        
Nutrients in coral reefs are recycling efficiently because the water is so shallow. Coral reefs are generally located along tropical coastlines, in open ocean deserts. They thrive in tropical, low nutrient waters because there is no phytoplankton in there. They are home to a large number of species, 
        
             
        
        
        
Answer:
because of factories and cars and smoking
Explanation:
 
        
                    
             
        
        
        
In converting a number with the unit of meter into kilometer we must use the conversion factor 1 km per 1000 meters.This is because in 1 kilometer there are 1000 meters and then the unit to be converted is already in meter so we need to divide it for us to convert.