Conjugation is the process by which one bacterium transfers genetic material to another through direct contact. The answer is Conjugation
 
        
                    
             
        
        
        
There are often not more than one or two independent variables tested in an experiment, otherwise it is difficult to determine the influence of each upon the final results. There may be several dependent variables, because manipulating the independent variable can influence many different things.
        
                    
             
        
        
        
you see katie helped sandra with homework, which helped sandra not fail. Because katie did not let sandra fail, sandra can graudate and get a job. She can also thank katie for not letting sandra fail and go homeless. 
sandra helped katie rollerblade. which has no significant impact. Who cares about rollerblading. 
your answer is C 
 
        
             
        
        
        
Answer:
a. are acid participants in, or by-products of, cellular metabolism
Explanation:
cellular metabolism is the process in which several chemical recation stakes place in body. there aretwo type of cellular metabolism - catabolism and anabolsim, which serves for several body functions.
During the chemical reaction of cellular metabolism, many acids are produced which are called metabolic acids. Several metabolic pathways produces different acids such as carboxylic acid, citric acid and amino acid. All the metabolic acid maintains body's functional activities,if any case acid formation increases it causes metabloic acidosis.
Hence, the correct option is a. "Metabolic acids are the acid participants of celular metablosim".