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(05.04 MC)   Image Courtesy of 3DScience.com   How does the activation energy differ between reactions A and B, which are both enzyme-catalyzed reactions? (2 points)  

(04.01 LC) Which of the following prevents blood from flowing backward through the circulatory system? (2 points)

(06.02 LC) Which of the following is an accurate statement about pathogens? (2 points)

(05.02 MC) Which of the following agents of chemical digestion are found in the small intestine? (2 points)

(04.02 LC) Which of the following is an example of a disease that is properly matched with one of its environmental risk factors? (2 points)

(04.01 MC) What effect will wrapping a tight band around the arm for a period of time have on blood flow? (2 points)

(06.03 MC) The illustration below shows the structure of the lymph system. Public Domain   A person’s blood tests show that her blood is accumulating old and damaged red blood cells. Which organ could be damaged, based on the image above? (2 points)  

(04.01 and 06.01 MC) Which of the following describes the correct relationship between kidney function and blood pressure? (2 points)

(06.04 MC) © Image Courtesy of 3DScience.com 2013 Based on the diagram above, what are the functions of B and D? (2 points)

(05.02 MC) Which of the following would increase the rate of an enzyme-catalyzed reaction? (2 points)