The correct answer is D.
Girls in general tend to spend more time with friends. This isn't to say that boys don't spend a lot of time with their friends but girls tend to engage more in their social relationships, whereas boys spend more time in competitive sports, more time in clubs and less time engaging in social relationships. 
 
        
             
        
        
        
Cellular respiration is the process of oxidizing food molecules, like glucose, to carbon dioxide and water.
hope this helped ^^
 
        
                    
             
        
        
        
They did it to get more detailed pictures of space
        
             
        
        
        
<span>Weather occurs in Earth's troposphere, which is "Lowermost layer" of the the Earth
Hope this helps!</span>
        
                    
             
        
        
        
Answer:
Explanation:
4 types of mutation: 
Germline mutations occur in gametes. Somatic mutations occur in other body cells.
Chromosomal alterations are mutations that change chromosome structure.
Point mutations change a single nucleotide.
Frameshift mutations are additions or deletions of nucleotides that cause a shift in the reading frame.
3 more:
Over a lifetime our DNA can undergo changes or 'mutations?' in the sequence of bases?, A, C, G and T.
This results in changes in the proteins that are made.
Mutations can occur during DNA replication if errors are made and not corrected in time.