Answer:
 A compass needle is affected by Earth's magnetic field. 
A magnetic field is strongest at the poles.
Explanation:
 
        
             
        
        
        
<span>
C. The allele changed from being autosomal to be sex-linked.</span>
        
             
        
        
        
Answer:
mosquitoes
Explanation:
more population means that they will eat more (decrease in mosquito population)
 
        
             
        
        
        
Must have more protons. Protons are positively charged, so if the atom (or in this case ion) has a net positive charge, it must have more protons (+ charge) than electrons (- charge).