Internal is very common for terrestrial animals
        
             
        
        
        
Answer:
C-North Dakota and Michigan
Explanation:
It has to be 32’F or less to snow.
 
        
             
        
        
        
Answer: Tau
Explanation:
NFTs or neurofibrillary tangles are insoluble twisted fibers. The tangles are abnormal accumulation that collect inside neurons. Their presence is also found in other diseases such as tauopathies. Statins have been shown to reduce neurofibrillary tangles in mouse models. Lithium has been shown to decrease the phosphorylation of tau. The tau protein is primary maker Alzheimer's disease.
 
        
             
        
        
        
A.one-sixth is your answer hope this helps