Endospores
A) are bacterial reproductive structures.
B) may be produced when nutrients are scarce.
C) are produced by bacteria, algae, and fungi.
D) are resistant to everything except radiation.
E) can last for only about 10 years.
B
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Which of the following statements is NOT true of
fungal spores? They a. are small. b. are dispersed by air currents. c. are hydrated. d. may germinate to start a new mycelium. e. may be sexual or asexual.
How does rhodopsin facilitate vision?
a. When light strikes rhodopsin, the bipolar cells becomes depolarized, causing the release of GABA. b. When light strikes rhodopsin, the photoreceptor becomes depolarized, causing the release of GABA. c. When light strikes rhodopsin, the photoreceptor becomes hyperpolarized, causing the release of GABA. d. When light strikes rhodopsin, the photoreceptor becomes depolarized, causing the release of glutamate. e. When light strikes rhodopsin, the photoreceptor becomes hyperpolarized, causing the release of glutamate.
Which of these is not a type of noncoding human DNA?
A. repeated sequences B. multigene families C. structural DNA D. highly condensed DNA close to centromeres and telomeres
Pasteur used swan-neck flasks in his experiments to prove that
A. dust in air was a source of living microorganisms. B. microorganisms could cause disease. C. microorganisms could be grown in laboratory infusions. D. air had "vital forces" capable of spontaneous generation. E. microbial fermentation could be used to make wine.