Answer:
<h2>Helicase,  topoisomerase ii /gyrase, single strand binding proteins.</h2>
Explanation:
DNA replication is the process in which DNA is replicated with the help of various enzymes and proteins..
Helicase is the enzyme which unwind the DNA strands, After unwinding, topoisomerase removes these twists. Single strand binding proteins  stabilize the single strands of DNA during replication.
 
        
             
        
        
        
It was an asteroid that came to earth two billions years ago and scientists says that there might be another one coming.so we might live in space for a couple of months or years. so that why the dinosaur die.
        
             
        
        
        
Answer: C) The event at the end of the Triassic Resulted in the extinction of fewer fauna’s then in any other period
Explanation:
Looking at the graph, the event at the end of the Triassic resulted in the smallest dip in the amount of fauna in the graph. This means that this event resulted in the extinction of fewer faunas than any of the other five major events. 
Option A is wrong as the event at the end of the Devonian decreased the number of Cambrian fauna. 
Option B is wrong as the event at the end of the Cretaceous resulted in a decrease in the Paleozoic fauna. 
Option D is wrong because the event that resulted in the Extinction of more fauna’s then in any other period was the event at the end of the Permian. 
 
        
             
        
        
        
Answer:
Consumer
Explanation:
A consumer is an organism that eats another organism in order to survive. If a fly eats a deer or any rotting meat it is a consumer.
 
        
             
        
        
        
False, because if the second population depends on the first as a food source then if the first decimates then the second will also start to decimate