C seems like the correct answer
        
                    
             
        
        
        
The law of A. <span>segregation </span>is the Mendel’s laws or principles explain that traits are passed from parents to offspring individually instead of as pairs, groups or sets. So the correct option is option “A” as far as the given question is concerned. This is a law or principle which states that during the formation of gametes, two copies of each heredity factors separate out so that the new offspring can get one factor of both the parents. This law was the first law in this direction.
        
             
        
        
        
RNA, is ribonucleic<span> acid
DNA, is </span><span>deoxyribonucleic acid</span>
        
                    
             
        
        
        
<span>1. What bacteria causes strep throat? 
Streptococcus
2. What are the oldest life forms on earth? 
Archaebacteria
3. What type of bacteria causes food poisoning? 
 Salmonella
4. What part of the bacteria cell helps it stick to surfaces? 
Pilli
5. Name two foods that bacteria help make: 
cheese, yogurt
6. What does “decompose” mean?
Break down
7. What is the control center of the bacteria cell? 
DNA
8. Where do Archaebacteria live? 
Flagella
9. To what kingdom do common bacteria belong?
Extreme environments 
10. List one structure that is found in a bacteria cell that is also found in a human cell.
Eubacteria</span>
        
                    
             
        
        
        
Answer:
b
Explanation:
The correct answer would be 45.
Assuming that the 10 soils are each represented by A, B, C, D, E, F, G, H, I, J.
A can combine with 9 others as: AB AC AD AE A F AG AH AI AJ
B can combine as: BC BD BE BF BG BH BI BJ
C as: CD CE CF CG CH CI CJ
D as: DE DF DG DH DI DJ
E as: EF EG EH EI EJ
F as: FG FH FI FJ
G as: GH GI GJ
H as: HI HJ
I as: IJ
Adding all the combinations together = 45
In other words;
 =
 =  = 45
 = 45