Municipal chlorinated water contains
A. no viruses.
B. no bacteria at all.
C. no endospores.
D. no cysts.
E. a decreased microbial load.
Answer: E
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The integration site for sensory and motor information in humans is the
A. cerebellum. B. thalamus. C. basal nuclei. D. hippocampus. E. cerebral cortex.
Four of the five substances listed below are
carbohydrates. Select the exception. a. glycine b. cellulose c. starch d. sucrose e. glycogen
External respiration
a. moves carbon dioxide from alveoli into the blood. b. moves oxygen from alveoli into the blood. c. moves oxygen from the blood into alveoli and carbon dioxide in the opposite direction. d. moves oxygen from alveoli into the blood and carbon dioxide in the opposite direction. e. moves both oxygen and carbon dioxide from alveoli into the blood.
Which of the following was demonstrated by the Miller-Urey experiment?
A. Life began on the prebiotic Earth 3.5 billion years ago. B. Life began in the oceans. C. Life can be started experimentally in the laboratory. D. Organic molecules important to life could have been formed from a vast array of simple chemicals.