The step cycle of walking consists of

a. a stance phase.
b. a swing phase.
c. both a and b.
d. none of the above.


d

Biology & Microbiology

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The statistical study of populations including sex ratio, age structure, and predicting growth rates is called _________.  

A.  ethology B.  demography C.  population genetics D.  biometrics

Biology & Microbiology

Melatonin is produced by the pineal gland

____________________

Biology & Microbiology

The chief diagnostic sign of brucellosis is

A) petechiae. B) jaundice. C) "bull's eye" rash. D) fever which recurs at 24 hour intervals. E) fever which cycles every 72 hours.

Biology & Microbiology

The most prominent water-borne pathogens of recent times include all of the following except ______.

A. Staphylococcus B. Salmonella C. Norwalk viruses D. Cryptosporidium

Biology & Microbiology