Fossils and molecular techniques reveal that the closest ancient wolflike relatives of most modern dogs lived in ____
a. Asia
b. Africa
c. South America
d. North America
e. Europe
ANSWER: e
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Bacterial infections have become much more of a threat to human health due to
A. the increased use of antibiotics. B. an increase in acquired antibiotic resistance by innocuous strains. C. horizontal transfer of pathogenicity. D. both an increased use of antibiotics and an increase in acquired antibiotic resistance by innocuous strains. E. All of the events given have increased the threat of bacterial infections.
Most of Europe is in the ______ biome.
A. high mountain B. taiga C. temperate deciduous forest D. tundra E. None of the choices are correct.
The Hominidae taxon includes ____
a. only humans b. only humans and chimpanzees c. gorillas, chimpanzees, and humans d. gibbons, orangutans, gorillas, chimpanzees, and humans e. new world monkeys and old world monkeys
In animals with a brain, the two major divisions of the nervous system are the ____
a. autonomic and peripheral nervous systems b. central and peripheral nervous systems c. brain and spinal cord d. nerves from the brain and the peripheral nervous system e. cranial and spinal nerves