I believe the answer is this:
DNA replication is called semi-conservative because half of the original double-helix appears in one daughter strand formed in replication if you need any more help then please comment and let me know ok. :)
        
             
        
        
        
It’s the first choice because the C at the end does not pair with anything, it was an extra pair that was made
        
             
        
        
        
Answer:
#male gametes are formed
#generative nucleus divides
#fertilization takes place 
#pollen tube grows 
# zygote is formed
#embryo is formed
 
        
                    
             
        
        
        
I think that it is the bone system please tell me if right
        
                    
             
        
        
        
Answer:
a nuclear reactor core(1000ºC)
Explanation:
edge2021