Which of the following statements about malaria is FALSE?
a. It kills about 2 million people each year.
b. It can be treated with the drug chloroquine.
c. An effective vaccine exists to protect from it.
d. It can be treated with the drug quinidine.
e. It can be treated with the drug quinine.
C
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What is meant by tidal ventilation?
A. Air moves into the lungs during inhalation and air moves out of the lungs during exhalation. B. Air moves in a continuous, unidirectional flow through the lungs. C. Water is pumped back and forth across the respiratory system. D. The ventilation rate increases and decreases at regular intervals. E. None of the answer options is correct.
What factor(s) were responsible for the drastic decline of American chestnut trees in the first half of the twentieth century? Select all that apply.
_____ a fungal pathogen _____ the introduction of an invasive species _____ a water mold protist _____ chestnut blight _____ a wood-boring beetle
Which of the following is/are the main causative agent/s of pharyngitis?
A. Aspergillus fumigatus B. Viruses C. Streptococcus pyogenes D. Both Aspergillus fumigatus and viruses are correct. E. Both Streptococcus pyogenes and viruses are correct.
Select the correct statement regarding the temperature response of the immune system.
A. When neutrophils encounter invading cells, they release immunoglobulin-1, which is carried to the brain by the circulatory system. B. Fever contributes to the body's defenses by stimulating the liver and spleen to store glucose. C. Fever contributes to the body's defenses by stimulating the maturation of B cells into plasma cells. D. After binding to a pathogen, macrophages release interleukin-1, which stimulates neurons in the hypothalamus to raise the body's temperature, producing a fever. E. Fevers between 99° and 100°F are often fatal.