Which of the following statements describes how root meristems differ from apical meristems in plants?
A. Cells in root meristems have determinate
growth.
B. Root meristems are shielded by a root cap
that protects cells from abrasion by the soil.
C. Cells in root meristems are adjacent to the
zone of maturation.
D. Cells in root meristems are stimulated by
hormones other than auxin.
B
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The process by which soil bacteria convert NH3 or NH4 to nitrate (NO3-) is called
A. assimilation. B. denitrification. C. fixation. D. nitrification. E. ammonification.
In the United States, what fuel source supplies the largest percentage of total energy?
a. nuclear energy b. renewable energy c. coal d. natural gas e. petroleum
The study of the practical uses of microbes in various industries and technologies is ________.
A. applied microbiology B. microbial ecology C. bioengineering D. biotechnology E. industrial microbiology
There are not many species of fish living deep in the oceans, but the deep-sea fish occasionally pulled up by fisherman have been bizarre creatures, such as the deep-sea anglerfish with its giant fangs and bioluminescent lure. Why have these fascinating deep-sea fish never been shown live on exhibit in an aquarium?
A. They might frighten visitors. B. They are adapted to cold temperatures and total darkness. C. Their diet is too specialized. D. They are adapted for high pressure, and will die at low pressure.