Which of the following statements regarding gut microbes is correct?
a. There are only 8-10 species of fungus in the human gut
b. the gut microbiota is compromised of bacteria and their viruses only
c. There are at least 100 types of fungus in the human gut
c. There are at least 100 types of fungus in the human gut
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Organisms grown with CO2 as its sole carbon source must have energy in the form of ATP as well as reducing power
Indicate whether the statement is true or false.
Full induction of the lactose operon requires
A. lactose present. B. lactose and glucose present. C. lactose and arabinose present. D. lactose present without glucose.
The earth's earliest atmosphere was likely
composed mostly of gaseous a. hydrogen. b. nitrogen. c. water vapor. d. carbon dioxide. e. mixtures of these
Which one of the following divisions of the nervous system predominates during the relaxed state?
A) sensory division B) sympathetic division C) somatic division D) parasympathetic division E) endocrine division