Answer the following statement(s) true (T) or false (F)
1. Canada's provinces have less autonomy than do U.S. states.
2. Today the eastern mountains have thin soils on steep slopes.
3. A greater range of natural hazards than in any other country in the world marks the natural
environments of the United States.
4. A major growth in manufacturing occurred after the 1860s with the adoption of steel
production.
5. The region called the America South includes all of Texas in the west and Florida in the
east.
1. FALSE
2. TRUE
3. TRUE
4. TRUE
5. FALSE
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Extensional normal faults are common in the Himalaya Mountains. Indicate whether the statement is true or false
At a toxicant dose of 27 mg, what would be the expected mortality for this chemical substance?
A) 75% B) 50% C) 100% D) 90% E) 80%
Methylmercury is an especially dangerous neurotoxin partly because it can be biologically magnified in food chains and food webs.
Answer the following statement true (T) or false (F)
Which of the following must occur so that the pre-initiation complex can be converted to the open complex?
A) The C terminal end of the RNA polymerase must be dephosphorylated. B) The C terminal end of the RNA polymerase must be phosphorylated. C) The N terminal end of the RNA polymerase must be dephosphorylated. D) The N terminal end of the RNA polymerase must be phosphorylated.