The immune system consists of:
a. cells
b. organs
c. tissues
d. all of the above
d
Explanation:
a. cells: yes, but also b and c
b. organs: yes, but also a and c
c. tissues: yes, but also a and b
d. all of the above: correct
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Fill in the blank with the right word.
Optimism can be cultivated by:
A. isolating yourself from the world B. setting unrealistic goals C. facing your problems head-on D. making generalizations E. laughing at other people
Which type of drug has never played a role in health care?
A. opiates B. inhalants C. stimulants D. depressants
What cholesterol level is associated with high risk for heart disease??
A) ?240 mg/dL B) ?220 mg/dL C) ?200 mg/dL D) ?190 mg/dL E) ?180 mg/dL