Christopher consumed food tainted with listeria monocytogenes. when this bacterium enters the digestive tract, it causes illness and sometimes death. what can the lymphatic system do to christopher fight this infection?

the spleen can remove listeria from the blood.
the thymus can produce b cells that target listeria.
the lymphatics can remove listeria from lymph.
the peyer's patches can release b cells to destroy listeria.

Sadie and her mom were at a hardware store to purchase smoke detectors for their new home. sadie's mom was unsure how many units she should purchase. what is the general recommendation? a. one large one for the middle of the house b. every room in the house should have one c. kitchen, garage and laundry room- since those are where most fires happen d. every living area including the hallway by the bedrooms should have a smoke detector.

When is the ideal time to take a resting heart rate

Which of the following is not important to your success in this course? a) being able to motivate yourself to exercise b) being committed to doing your workouts c) being in top physical shape d) being honest about your physical activity