Staphylococcus aureus toxin is
A. heat-stable.
B. an exotoxin.
C. an endotoxin.
D. heat-sensitive.
E. heat-stable AND an exotoxin.
E. heat-stable AND an exotoxin.
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Which one of the following methods of antimicrobial susceptibility testing is the most accurate? (Note: information about susceptibility testing can be found on the CD-ROM that accompanies this book.)
A) agar dilution method B) disk-diffusion method C) macro broth dilution method D) micro broth dilution method
A structure in the brain that bridges the higher and lower brain centers. _____ 7) A portion of the brain that processes all sensory information except olfaction and relays information to the appropriate higher brain centers. _____ 8) This part of the peripheral nervous system regulates involuntary body functions, heart rate, and breathing rate. _____ 9) This portion of the central nervous system governs bodily activities during restful conditions. _____ 10) This part of the peripheral nervous system carries sensory information from the skin, skeletal muscles, and joints to the central nervous system and may also direct voluntary movements. _____
A) Autonomic nervous system B) Pons C) Reticular activating system D) Hypothalamus E) Limbic system F) Corpus callosum G) Parasympathetic nervous system H) Sympathetic nervous system I) Thalamus J) Somatic nervous system
Which of the following are white blood cells that are capable of engulfing other cells and particles?
a. pathogens b. eosinophils c. phagocytes d. erythrocytes
Spirochetes have a rigid, corkscrew shape while spirilla are helical and more flexible.
Indicate whether the statement is true or false.