D) Robert Hooke first discovered cells when observing cork under the microscope. 
 
        
             
        
        
        
Answer:
Marigold --> Pill Bug --> Fly
Explanation:
 
        
             
        
        
        
It occurs in the first phase known as the Prophase. During this the chromosomes inside the cell’s nucleus condense to form tight structures.
        
             
        
        
        
Explanation:
in binary fission one amoeba cell divide into two daughter cell which are genetically identical 
first the nucleus divide into two then the cytoplasm divide and two new daughter cells are formed