Answer:
When the meteor hit a caused a chain reaction which caused all that and made some cloud that was toxic.
Explanation:
 
        
             
        
        
        
Polyploidy is the term that describes the chromosomal abnormality of having extra chromosomes. 
        
                    
             
        
        
        
Asexual means by self sexual means from opposite genders
        
             
        
        
        
Explanation:
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination