Which bacteria is a common cause of food poisoning?
a. Clostridium
b. Helicobacter pylori
c. Mycobacterium tuberculosis
d. Campylobacter
e. Lactobacillus
d
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A 45× objective and a 10× ocular produce a total magnification of
A. 145×. B. 900×. C. 450×. D. 55×.
For a typical flowering plant, the first cell of the triploid (3n) endosperm is formed from
a. one sperm fused with two antipodal cells. b. two sperm fused with the egg. c. one sperm fused with the central cell. d. one sperm fused with the egg. e. two sperm fused with a synergid.
The rate of carbon dioxide production by Cyclocephala colasi beetles was used to measure their
A. rate of photosynthesis. B. level of activity. C. ability to pollinate flowers. D. rate of respiration. E. body temperature.
Match the terms with their correct definition.
A. cell body B. myelin sheath C. dendrite D. axon E. nucleus