It is a process that causes rock to break into little pieces.
        
                    
             
        
        
        
The correct option is C.
Obligate anaerobes are micro organisms that are poisoned and killed when exposed to the normal atmospheric oxygen concentration. These organisms can only survive in the absences of oxygen, therefore, they carry out only anaerobic form of respiration in order to obtain the energy that they need. <span />
        
                    
             
        
        
        
Answer:
a. and e. 
Explanation:
Metabolic alkalosis would cause slower and shallower breathing which increase carbon dioxide concentrations which in turn are consumed to form carbonic acid which helps decrease the pH.  
 
        
             
        
        
        
Fish and marine mammals sift out the salt from the water, then they drink it.
        
                    
             
        
        
        
Answer: 47 Chromosomes
Explanation: People with Down syndrome typically have three copies of chromosome 21 in each cell, for a total of 47 chromosomes per cell.