Scarlet fever involves:
A. high fever.
B. bright red rash on face, trunk, inner arms and legs, and tongue.
C. eventual desquamation of epidermis.
D. septicemia as a complication.
E. All of the choices are correct.
Answer: E. All of the choices are correct.
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Indicate whether the statement is true or false.
Timber wolf populations are partially controlled by wolf behavior. For example, wolves form packs and are territorial. Therefore, only a finite number of wolves will comprise a pack and occupy a relatively large territory. Which of the following best describes this type of population-regulating mechanism?
a. competitive exclusion mechanism b. niche-controlling mechanism c. habitat-controlling mechanism d. extrinsic mechanism e. intrinsic mechanism
Which of the following is not an example of antibody action?
A) Neutralization B) Inflammation C) Agglutination D) Sterilization E) Complement activation
In Figure 43-3 the structure labeled 4 is:
a. the basilar membrane. b. the tectorial membrane. c. the organ of Corti. d. the sterociliary membrane. e. the vestibular membrane.