It would be fittest
hope this helps
        
             
        
        
        
Answer:
50000
Explanation:
number of paramecium in 1 gallon of water = 50
number of paramecium in 1000 gallons of water = 
1000× 50 = 50000
 
        
             
        
        
        
It shows the evolution of an being. "Fossil record, history of life as documented by fossils, the remains or imprints of the organisms from earlier geological periods preserved in sedimentary rock." from https://www.britannica.com/science/fossil-record
 
        
             
        
        
        
Answer: Active transport
Explanation: Active transport is a process of transferring materials with the expenditure of energy