The data in Table 20.3 show that these bacteria
a. Can be subcultured.
b. Developed resistance to antibiotics.
c. Were killed by 0.125 g/ml of antibiotic X.
d. Were killed by 0.5 g/ml of antibiotic X.
e. Were resistant to 1.0 g/ml at the start of the experiment.
Ans: b. Developed resistance to antibiotics.
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If a large 10-km asteroid or comet struck the Earth in the ocean floor, I. large amounts of molten rock would rain down on Earth and cause massive forest fires. II. giant tidal waves would result III. after effects would cause the deaths of most animal life on the planet. IV. thick clouds of dust would form and block out the Sun for an extended period
a. I & IV b. II & III c. I, II, & III d. I, II, III & IV e. II, III, & IV
The major lymphatic vessel that drains the right inferior side of the body is the __________.
What will be an ideal response?
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a. acid b. base c. salt d. buffer e. antioxidant
All of the following are types of light microscopes EXCEPT
A) fluorescent. B) confocal. C) phase-contrast. D) scanning tunneling. E) bright-field.