The animal it gave birth to 
        
             
        
        
        
The cell cycle is controlled by many cell cycle control factors, namely cyclins, cyclin-dependent kinases (Cdks) and cyclin-dependent kinase inhibitors (CKIs). Cyclins and Cdks, which are positive regulators of the cell cycle, activate cell cycle factors that are essential for the start of the next cell cycle phase.
Factors Affecting Cell Division
Nutrients. The nutrients present in the cell affect cell division. ...
Genetics. Genetic code regulates cell division. ...
Chemicals. Exposure to toxic chemicals such as pesticides and some cleaning chemicals can cause cell mutation. ...
Stress. Stress affects cell division.
        
             
        
        
        
Hypertrophy or hypertrophic. Hope that answered your question :)
        
             
        
        
        
Answer:
A Flowers started to be pollinated by trees. 
Explanation:
Hopefully this helps