Leukemia can be treated using human stem cells to attack and destroy cancer cells.
 
        
                    
             
        
        
        
A nephron<span> is the basic unit of the kidneys and one of its functions is to filter substances in the blood and excreting urine. The correct order of where urine flows in a nephron is: </span><span>glomerulus, next to proximal convoluted tubule, then to loop of henle, then to distal convoluted tubule, lastly collecting duct. This process is important in homeostasis.</span>
        
             
        
        
        
The appropriate response of the nurse manager is to reprimand the nurse providing the colostomy care to a client without PPE because of the risk of transmitting nosocomial infections and maintaining hospital hygiene. The use of personal protective equipment should always be imposed in doing potentially infectious work, especially in the hospital.
        
             
        
        
        
It will be Control. Part of the experiment used to show that the results of an experiment is really due to the conditions being tested.
        
             
        
        
        
Answer:
The answer is A.
Explanation:
To test if the selenium from the mine has an effect on the fish living in the lake which i assume is close to the mine, testing the tissue of the fish from that lake and comparing it to the selenium levels of the fish from a nearby lake would be a testable hypothesis because there is a comparable aspect and there should be a difference in the numbers between the fish from the two lakes because of their distance to the mine.
I hope this answer helps.