In the nephron depicted above, what will happen if part B malfunctions so that substances can no longer diffuse in and out? (2 points)
As a child, you contracted hand, foot, and mouth disease, which is caused by a virus. Several years later, your sibling also contracted the same virus. Why don’t you get sick a second time? (2 points)
Although you consume millions of bacteria every day when ingesting food and drink, you rarely get sick. This is partially due to which of the following defenses of the digestive system? (2 points)
Which of the following components of the immune system form memory cells after you receive a vaccine? (2 points)
Which disorder is properly matched with the lymphatic organ that would prevent the disorder? (2 points)
A student’s tonsils become infected and she has them removed. What condition does she need to be careful of in the future? (2 points)
Leukemia is a form of cancer in which lymphocytes divide uncontrollably, often crowding out red blood cells in the blood vessels. Which of the following correctly describes where cancerous lymphocytes could develop and how they would enter the bloodstream? (2 points)
A person had an infection of his Peyer’s patches and developed intestinal cancer. How could these two events be related? (2 points)
Based on the cross sections above, which of the following correctly matches the structure with its function? (2 points)
Which of the following correctly describes events occurring in female reproductive organs in their proper order? (2 points)
A man with testicular cancer loses both testes. Which of the following describes one possible effect of this procedure? (2 points)
A baby’s first breath initiates a series of changes that includes which of the following? (2 points)
Which of the following describes vessels critical to fetal circulation but does not play a role in adult circulation? (2 points)
As you walk down the hall on the way to class, several students sneeze. You unknowingly inhale some of the droplets that were expelled when they sneezed, allowing the flu virus to enter your body. Explain the nonspecific immune defenses that the virus must bypass in order to infect a body cell.
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