Answer:
Explanation:
The first mass extinction is called the Ordovician-Silurian Extinction. It occurred about 440 million years ago, at the end of the period that paleontologists and geologists call the Ordovician, and followed by the start of the Silurian period. In this extinction event, many small organisms of the sea became extinct.
 
        
             
        
        
        
Answer:
ase 
Explanation:
Except for some of the originally studied enzymes such as pepsin, rennin, and trypsin, most enzyme names end in "ase"
 
        
                    
             
        
        
        
The Chinese. All other cultures most like did not support astronomy.
        
             
        
        
        
Cellular <u>Metabolism</u> is all of the chemical reactions in cells.
- <u><em>Definition:</em></u><em> Cell metabolism is the series of processes that take place in living organisms to sustain those organisms.</em>
Hope that helps!