Answer:
A and B
Offspring differ gentically from one another AND differ genetically from both parents
Explanation:
This mode of reproduction is known as Sexual Reproduction and it helps in the Variation Of Genes.
 
        
                    
             
        
        
        
Answer:
The pollen grain has apertures on the wall which allow dimensional adjustments in response to changes in moisture conditions. The apertures also offer an exit route for the contents of the grain.
Explanation: