Answer: a. True
Explanation:
The main aim of the IRB is to safeguard the right of the human subjects used for the purpose of research conducted by the governmental authority. It also emphasizes over the protection of the researchers from illegal complaints. The risks to the human subjects can be minimized by using procedures which cause no harm to them and a detail consent of the research practice should be taken from these subjects by informing the purpose of research. 
 
        
             
        
        
        
Answer:
Cells come from preexisting cells.
Explanation:
This statement relates to the statement that cells divide to make new cells.
 
        
             
        
        
        
Answer:
B??? i dont know. dont trust meh
Explanation:
 
        
             
        
        
        
Blood vessels visible in the posterior view of the heart include the Superior and inferior vena cava and the pulmonary veins. The superior vena cava and the inferior vena cava drain systemic venous blood into the posterior wall of the right atrium. The pulmonary veins transport blood from the lungs back to the heart and are best seen in posterior view of the heart. Other features visible in the posterior view include, right and left atrium, right and left ventricle, aorta, aortic arch, pulmonary veins and arteries, coronary sinus, coronary artery and posterior interventricular artery.
        
             
        
        
        
Answer:
1,2 and four
Explanation:
over fishing would cause loss of every species