Sterilization is achieved by
A. hot water.
B. flash pasteurization.
C. boiling water.
D. steam autoclave.
E. All of the choices are correct.
Answer: D
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Because DNA strands are antiparallel, DNA replication at a single replication fork proceeds
A) continuously on both strands. B) continuously on one strand and discontinuously on the other. C) discontinuously on both strands. D) continuously on both strands for a time and then discontinuously.
What happens to a cell that is placed in an isotonic solution?
a. The cell swells. b. The cell shrinks. c. The cell stays the same size. d. The cell crenate.
Chaparral vegetation occurs around much of the Central Valley of central and southern California. This biome is very similar to that found
A) along the coast of Great Britain. B) in the Australian interior. C) in the Mediterranean region. D) on the southeast coast of the United States. E) in central Asia.
The levels of organization from most simple to most complex are
A. cell ? chemical ? organ ? tissue ? system. B. tissue ? cell ? chemical ? organ ? system. C. chemical ? tissue ? cell ? organ ? system. D. chemical ? cell ? tissue ? organ ? system.