Answer:
I think its 2 mass correct me if im wrong but I'm very sure
 
        
                    
             
        
        
        
1. Early earth had no ozone layer, which means it was most likely extremely hot. 
2. Young earth had no oxygen and life needs oxygen in order to survive. 
3. There where so many natural disasters happening all the time, like volcanic eruptions and constant impact with meteorites and asteroids. 
-Extra one (4. Earth originally had no ocean and water. Oceans eventually formed from the water vapor released from the volcanic eruptions, but before that there was nothing.)
        
             
        
        
        
Answer:
The following table lists that number and variety of organisms in four different. Predict what would happen to Ecosystem 3 immediately after a volcanic eruption. Its biodiversity would decrease ... 395---Add all of the organisms together and divide by the number of ecosystems
Explanation:
 
        
             
        
        
        
Interphase and cytokinesis are preparing the cell to go through mitosis and multiply
        
                    
             
        
        
        
The ingredients in MacConkey agar supplies that supplies nitrogen are enzymatic digest of Gelatin, Casein and Animal tissue.