In hydrothermal vent communities, autotrophic organisms obtain energy by oxidizing
A) reduced sulfur compounds.
B) carbon dioxide.
C) sodium chloride.
D) metals such as copper and iron.
A
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Which of the following is NOT a function of slimy mucilage in microbes?
A. protects against the host's immune system B. binds nutrients C. serves as a flotation device D. prevents desiccation (drying out) E. protects against ultraviolet radiation
Many childhood diseases caused by viral infections of the upper respiratory tract can usually be diagnosed by
A. inspection of the rash. B. the type of cough. C. the type of fever. D. the incubation period.
If you lose your sensitivity to the sound of the waves but still notice a seagull flying above you, what is happening?
A. sensory adaptation in sight involving thermoreceptors B. sensory adaptation in sight and hearing involving mechanoreceptors C. competition between processing of hearing and sight involving light receptors D. sensory adaptation in hearing involving mechanoreceptors E. general sensory diminution involving mechanoreceptors and thermoreceptors
Bacterial microcompartments, or BMCs are filled with enzymes designed to work together in pathways.
a. true b. false