You are supposed to answer what happens in each phase of meiosis.
        
             
        
        
        
Answer:
C. At least five mass-extinction events have occurred during the last 500 million years.
Explanation:
- The history of mass extinct is related to the five mass extinctions that are caused over by the 350 million years n which many species have disappeared in there short geologic time.
- A massive extinction is caused in the Permian Triassic extinction event i.e about 250 mn years ago which on an estimate has killed 90% of the species.
- The Cretaceous–Paleogene extinction event that occurred over 66 million years ago is known to have wiped out the dinosaurs and many other species.  
 
        
             
        
        
        
Answer
La corteza terrestre temprana apareció hace aproximadamente 4.500 millones de años, después de las últimas etapas de acreción planetaria.
 
        
             
        
        
        
D westerlies 
Because the west wind of flowing well west
        
                    
             
        
        
        
Nucleic acids (DNA and RNA) are the only known molecules that are able to store genetic information and transmit genetic information (copy it and pass it on). They are found in all living things on Earth.
-Agarvated