How long should hands be lathered while washing?
5 seconds
10 seconds
10 minutes
20 seconds
20 seconds
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If you ran the same experiment as Engelmann without passing light through a prism, what would you predict?
A) The results would be the same. B) The bacteria would be relatively evenly distributed along the algal filaments. C) The number of bacteria present would decrease due to an increase in the carbon dioxide concentration. D) The number of bacteria present would increase due to an increase in the carbon dioxide concentration. E) The number of bacteria would decrease due to a decrease in the temperature of the water.
Chemists use the term "organic compounds" to refer to molecules that ________
a. contain the carbonyl or carboxyl functional groups b. are formed entirely of carbon and hydrogen c. contain primarily carbon and hydrogen d. are created only in living organisms
The integration site for sensory and motor information in humans is the
A. basal nuclei. B. cerebellum. C. thalamus. D. cerebral cortex. E. hippocampus.
If a plant were placed in continual darkness, it would continue to open and close its stomata at
approximately the same time each day. This phenomenon is governed by: a. annual rhythms. b. floral clocks. c. transpiration. d. temporal mechanisms. e. circadian rhythms.