Answer:
 
if ur asking why here it is Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories
 
        
             
        
        
        
Answer:
A cabinet and a small closet.
Explanation:
A cabinet and a small closet are the best locations to incubate cultures because these location are safe from the cats interaction with the microbial culture. A cabinet consist of a cupboard with shelves or drawers for storing things. Closet is a tall cupboard which is used for storage things so due to height the cats can't reach to these place so the culture is safe.
 
        
             
        
        
        
False, that is a close answer and can be easily confused with the right answer which is "Centromere" it is the specialized region of the chromosome where two sister chromatids are most closely attached.
The centrosome is like the organization center in the process of cell division. Has two centrioles.
 
        
             
        
        
        
Answer: Mantles 
Explanation: Mantles convection currents causes plate movement 
 
        
             
        
        
        
Answer:
The correct option is A. 
They have cheaper disposal fees.