Some of the work with Hawaiian fruit flies illustrated the presence of a
a. prezygotic isolating mechanism, which involved behavioral isolation.
b. prezygotic isolating mechanism, which involved gametic isolation.
c. prezygotic isolating mechanism, which involved temporal isolation.
d. postzygotic isolating mechanism, which involved behavioral isolation.
e. postzygotic isolating mechanism, which involved gametic isolation.
A
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Why was the determination of the actual sequence of the human genome considered to be descriptive science?
A. It did not involve deductive reasoning. B. It did not involve hypothesis-driven research. C. It involved hypothesis-driven research. D. It involved deductive reasoning.
A toxic organic compound is:
a. chromium. b. polychlorinated biphenyls. c. trash. d. oil. e. zinc.
The brain and spinal cord are covered by the protective:
a. ventricles b. meninges c. cerebrospinal sheaths d. myelin e. endothelium
Where would you predict an obligate anaerobe would grow in a tube of fluid thioglycollate medium?
At or very near the surface of the broth A little below the surface of the broth Throughout the entire tube At the bottom of the tube