4 cells will result. Each cell will have 20 Chromatids which is half a chromosome. once sexual reproduction takes place, these 20 chromatids will match with those from the other parent cell to form chromosomes 
        
             
        
        
        
<span>By filtering the air so that the lungs so the lungs don't get infected</span>
        
             
        
        
        
Vestigial structures are often homologous to structures that are functioning normally in other species. Therefore, vestigial structures can be considered the evidence for evolution, the process by which beneficial heritable traits arise in populations over an extended period of time.
        
             
        
        
        
 hope it helps you
a. not be able to meet long term timber needs.