Which country would be expected to have the greatest species richness per unit area?
a. Japan
b. United States
c. Brazil
d. Canada
e. New Zealand
C
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The incidence of HIV/AIDS among transfusion recipients has
A) increased since the discovery of HIV. B) decreased since the discovery of HIV. C) remained the same since the discovery of HIV. D) never been more than a few individuals per year.
Sickle-cell anemia is a human disease that occurs as a result of what type of mutation in the b-globin gene?
A. silent B. missense C. nonsense D. frameshift E. sense
When a species consisting of a single large population slowly evolves over many generations into a new species, this an example of
A. synapomorphy. B. cladogenesis. C. anagenesis. D. monospeciation. E. horizontal gene transfer.
Which portion of the brain contains centers for control of body temperature, appetite, and fat metabolism?
a. hypothalamus b. cerebellum
c. midbrain d. thalamus e. pons