The correct answer is option B) their DNA sequences.
The best comparison for finding out the evolutionary relationship between two organism is the comparison of their DNA (deoxyribonucleic acid) sequence. The organisms, which are more closely related to one another share more similarity in the DNA sequence as compared to the distantly related organism, so, the comparison of the DNA can help in determining the evolutionary relationship between the organism.
 
        
                    
             
        
        
        
Answer:
A
Explanation:
messes with the chromosomes
 
        
                    
             
        
        
        
Answer:
<em>The correct option is A) solar energy</em>
Explanation:
Solar energy can be described as the energy which comes from the Sun. This energy drives many chemical reactions such as the reactions of photosynthesis and for generating electricity.
The solar energy is thought to meet the potential of all energy required in the future. The solar energy is the reason for all the climatic conditions which arise in a particular area. 
 
        
             
        
        
        
Answer:
C. Independent variable
Explanation:
The independent variable in an experiment is the variable that the experimenter manipulates or changes in order to effect a measurable response in the dependent variable. 
According to this question, an experiment is conducted to determine what concentration of disinfectant is most effective in killing bacteria. The independent variable is the CONCENTRATION OF DISINFECTANT because it is the variable being changed or manipulated. 
 
        
             
        
        
        
Hormones and water balance are another two conditions which are maintained by cells.