Instructions
Which of the following are examples of prevalence data?
- All cases of tuberculosis found in a mass chest x-ray survey.
- All reported new cases of influenza in a one-month period.
- All reported new cases of cancer in a single year.
- All cases of coronary heart disease found during an initial examination of persons included in a community survey.
Which chemical functional group is part of the control mechanism for many enzymes and serves as a big blinking light in signal transduction?
a. sulfhydryl
b.amino
c.phospate
d. methyl
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