Answer: The first answer is 3 and the second answer is c
 
Explanation:
 
        
             
        
        
        
Is it flammable liquid and flammablle solid 
        
             
        
        
        
Answer: A Physical Barrier. ...
Selective Permeability. ...
Endocytosis and Exocytosis. ...
Cell Signaling. ...
Phospholipids. ...
Proteins. ...
Carbohydrates. ...
Fluid Mosaic Model.
Explanation: Have a good rest of the day.
 
        
             
        
        
        
1. wear safety glasses
2.never touch heating source
3. keep away from overhead shelving
 
        
             
        
        
        
Answer:
urinary bladder does not help in reproduction