Host defense mechanisms—ways in which the body protects itself from pathogens—can be thought of as an army consisting of how many lines of defense?
A) 2
B) 3
C) 4
D) 5
B) 3
Biology & Microbiology
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If a physician prescribes Tamiflu to a patient, the patient is most likely infected with which virus?
a. HIV b. Herpes simplex virus (HSV) c. Cytomegalovirus (CMV) d. Influenza
Biology & Microbiology
Which would be most effective against Pseudomonas?
A. Alcohol B. Radiation C. Quaternary ammonium compounds D. Iodophors
Biology & Microbiology
The biome most known for its rich, deep topsoil is:
a. tundra b. taiga c. tropical rain forest d. desert e. grassland
Biology & Microbiology
Which of the following are characteristics of reptiles?
A. They have lungs and smooth skin. B. They have a skeleton composed of cartilage and are ectotherms. C. They have lungs and a skeleton composed of cartilage. D. They are ectotherms and have smooth skin. E. They have lungs and are ectotherms.
Biology & Microbiology