During the Olestra experiment what was the independent variable?
a. The group that received Olestra chips
b. The group that became ill.
c. The presence or absence of Olestra.
d. How ill the individuals became.
e. The group that received plain chips.
c
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Enterotoxins affect cells in the:
A) respiratory tract. B) genitourinary tract. C) gastrointestinal tract. D) central nervous system.
The normal pH of rainfall is
A. slightly acidic, pH 5.6. B. slightly basic, pH 5.6. C. slightly acidic, pH 9.6. D. slightly basic, pH 9.6. E. neutral, pH 7.0.
Which blood type is the universal recipient?
a. A b. B+ c. AB+ d. AB e. O+
During spring time in Maine, male moose often enter a cow pasture and begin calling to the female cows. The moose may even try to mount the female but the male genitalia do not fit properly inside the female genitalia. This is an example of
A. habitat isolation. B. gametic isolation. C. mechanical isolation. D. behavioral isolation. E. temporal isolation.