________________halophiles require at least a 9% salt concentration in order to grow, whereas ______________ halophiles can adapt to a wide range of solute concentrations.
A) Facultative; obligate
B) Osmotolerant; obligate
C) Obligate; facultative
D) Osmotolerant; facultative
E) Facultative; osmotolerant
C) Obligate; facultative
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Which of the following do anaerobic
methanogens produce?
a. carbon monoxide b. carbon dioxide c. ammonia sulfide d. methane e. hydrogen sulfide
In a hypersensitive response, ____
a. long-lasting resistance is built up throughout the plan. b. the axillary buds break dormancy c. cryptochrome is synthesized d. jasmonic acid activates enzymes e. the infected area is sealed off by necrotic lesions
Flowering plants are pollinated by insects and other animals. What is the advantage of this method of reproduction?
a. Diversity is much more likely within this group. b. It allows these flowering plants to thrive in drier climates. c. It eliminates the need for swimming sperm. d. The success of these plants provides more food for predators. e. Flower pollination by insects and animals is much more efficient than pollination that relies on the wind.
Although Deinococcus-Thermus phyla stain Gram-positive, which reason(s) exclude them from this Gram type?
A. Their cell envelope includes an S-layer B. They have L-ornithine in their peptidoglycan C. Their plasma membrane has phosphatidylglycerol phospholipids instead of palmitoleic acids D. They lack teichoic acids