Chicago is a top-tier world city
Indicate whether this statement is true or false.
FALSE
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If the pH of a solution is 10, what is the hydronium ion concentration?
A. 1 × 1010 M B. ?1 × 1010 M C. 10 M D. ?10 M E. 1 × 10-10 M
How might a mineral deposit that previously could not be mined profitably be upgraded to an ore deposit?
The mineral deposit becomes less concentrated. The demand for the mineral decreases, raising its value. Older equipment is preferentially used in mining over newer equipment. The cost to extract a mineral increases. The demand for the mineral increases, raising its value.
What refers to the ability of a living system to be restored after a period of moderate to severe disturbance?
A. stability B. inertia C. constancy D. tipping point E. resilience
Which of the following is true of pol II?
A) It must be in its phosphorylated form to cause both the initiation and elongation. B) It must be in its dephosphorylated form to cause both the initiation and elongation. C) It must be in its phosphorylated form to initiate transcription but must be in its dephosphorylated form to cause elongation. D) It must be in its dephosphorylated form to initiate transcription but must be in its phosphorylated form to cause elongation.