They must be non-toxic ie not chemicals that could poison the customers because of the potential risk of contaminating things which can come into contact with the food like say cutting boards, dishes, utensils, pots, pans and any other similar items.
        
             
        
        
        
Answer:
When red blood cells are placed inside pure water they normally swell up and eventually explode. Red blood cells in pure water swell up because the pure water enter in the red blood cells by mean of osmosis. The water molecules are able to enter the red blood cells because the salt concentration inside the red blood cells is more than that of the pure water.
As water continue to move inside the cells, the cell swell up and eventually burst because the internal pressure inside the cell is greater than the external pressure, therefore the cell membrane become ruptured and eventually burst.  
 
        
             
        
        
        
The answer is a im pretty sure 
        
             
        
        
        
Answer: MONOCOT
1) seeds with one cotyledon.
2) the plants have fibrous root system
3) leaves have parallel venation
4) the petals of flowers are trimerous(3 petals)
    DICOT
1) seeds with two cotyledon.
2) the plants have taproot system.
3) leaves have reticulate venation
4) the petals of flowers are pentamerous (5 petals)
Explanation: