The problem with defining abnormal behavior is that ____
a. too many disorders have similar phenotypes
b. some behaviors are not abnormal, but simply variants
c. biological factors related to abnormal behavior are not known
d. mental illness is multifactorial, and therefore, cannot be defined
e. twin concordance studies mental illness is due mostly to environmental components
b
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Available evidence is consistent with the proposal that prion diseases are caused by infectious proteins.
Answer the following statement true (T) or false (F)
What embryonic structures are common in all chordates?
A) pharyngeal slits B) arrector pili C) gametophytes D) vertebrae
The Oxidase Test is used to determine which of the following characteristics of a bacterium?
A. Whether the bacterium is a gram-positive or a gram negative B. Whether the bacterium is a sacchrolytic or asacchrolytic C. If the bacterium is an obligate aerobe or a facultative anaerobe D. Whether the bacterium utilized the oxidative or fermentative pathway in glycolysis E. none of the above
The growth pattern in Figure 20.1 is characteristic of which organism?
A. Klebsiella B. Proteus C. Pseudomonas D. Salmonella E. Shigella